Terms and conditions

In force from 4 August 2026. They replace the version in force from 27 July 2026.

1. Provider and scope of services

These terms govern the provision of services by Leadora Technologies s.r.o., Reg. No. 24624136, registered office Hostěradice 44, 252 82 Kamenný Přívoz, Czech Republic, entered in the Commercial Register kept by the Municipal Court in Prague (Městský soud v Praze), section C, insert 444314 (the „provider“). Contact e-mail: business@dsak.tech, telephone +420 606 123 573. Full provider details including supervisory authorities are on the legal notice page.

This website is a portfolio and a point of contact. David Sak is entrusted by the provider with managing its content and delivering the work. The contracting party, the invoicing entity and the bearer of all rights and obligations arising from concluded contracts is always the provider.

Services cover in particular: development of websites and applications, development and deployment of AI agents, automations and data pipelines, training, management of performance marketing campaigns, and consulting or audits of existing solutions.

The provider is not registered for VAT. Prices stated on the website and in quotes are final; no tax is added to them.

2. Who these terms apply to

The services are aimed mainly at business customers, meaning clients acting within their business activity. A consumer, meaning a natural person who concludes a contract with a trader outside their business activity, may order them as well.

Sections 6, 10 and 13 contain provisions that apply to consumers only. They are marked as such. Rights granted to a consumer by law cannot be curtailed by these terms; where a provision would be less favourable to a consumer than the law, the law applies.

3. Orders and formation of contract

The offering on this website is not a binding offer to conclude a contract but an invitation to submit an inquiry. The provider responds to an inquiry with an individual quote setting out the scope of work, the price and the timeline.

A contract is formed by confirming a written order (e-mail is sufficient) or by signing a separate contract for work. For a paid consultation, the booking becomes binding once it is paid. Contracts are concluded in Czech or English and the provider archives them in the e-mail correspondence; a copy is provided on request.

4. Prices and payment terms

The price of an initial paid consultation is deducted from the price of a follow-up project if that project is ordered within 90 days.

Payment is by bank transfer to the account stated on the invoice. Invoices are due in 14 days unless agreed otherwise. Beyond the price of the service there are no additional charges for using means of distance communication; each party pays their own operator or connection provider at the standard rate.

5. Client cooperation

The client provides access to systems to the extent necessary for the work (read only in the case of a consultation or audit) and designates a contact person. Delay in providing cooperation extends the deadlines by a corresponding period.

6. Withdrawal from the contract, consumers only

This section applies to consumers only. It does not apply to clients acting within a business activity.

6.1 Right to withdraw within 14 days

Where a consumer concludes a contract by distance means (typically by e-mail or through a form) or off premises, they have the right under Section 1829 of the Czech Civil Code to withdraw from the contract within 14 days of its conclusion, without giving a reason and without any penalty.

The deadline is met if the consumer sends the withdrawal on the last day of the period. Sending it by e-mail to business@dsak.tech is sufficient. The provider confirms receipt without undue delay.

6.2 When the right to withdraw ceases

Important notice given before the contract is concluded. Under Section 1837(a) of the Czech Civil Code, a consumer cannot withdraw from a contract for the provision of services where the services have been provided in full, provided that performance began with the consumer's prior express consent before the fourteen day period expired and the provider informed the consumer in advance that the right to withdraw ceases once performance is complete.

This notice is hereby given. In practice: if a consumer asks for work to start straight away and the provider completes the service within 14 days, the right to withdraw ceases. Consent to starting performance before the period expires is requested expressly and in writing, normally in the order confirmation.

6.3 Withdrawal after performance has started

If performance started at the consumer's express request but is not yet complete, the consumer may still withdraw. Under Section 1834 of the Czech Civil Code they then pay a proportionate part of the price for what was performed up to the moment of withdrawal. The proportionate part is calculated from the total agreed price according to the work actually done.

If the provider failed to inform the consumer in advance of the duty to pay a proportionate part, or started performing without the consumer's express request, the consumer pays nothing.

6.4 Refunds

If a consumer withdraws, the provider returns within 14 days of the withdrawal all funds received from them, less any proportionate part under 6.3. Refunds are made by the same means they were received unless agreed otherwise; the consumer incurs no further cost.

6.5 Model withdrawal form

Using the form is optional; any unambiguous statement will do. If you want to use it, complete and send this text:

To: Leadora Technologies s.r.o., Hostěradice 44, 252 82 Kamenný Přívoz, Czech Republic, business@dsak.tech

I hereby give notice that I withdraw from the contract for the provision of the following services: (state what was ordered)

Date of order: (date)

Name of consumer: (name)

Address of consumer: (address)

Date: (date)

Signature (only if sent on paper)

7. Intellectual property

On full payment for the work, all economic rights to the delivered code and configuration pass to the client. The provider retains rights to general knowledge, methods and components independent of the client.

The provider may present the work as a reference in its portfolio, including the client's name and a preview of the work, unless the parties agree otherwise. The client may withdraw this consent in writing at any time and the provider will remove the reference without undue delay.

8. Confidentiality and data protection

All information about the client's processes, data and systems is confidential. The provider deploys solutions so that the client's data does not train public models and does not leave the agreed infrastructure. Processing of personal data is governed by the privacy policy or by a separate processing agreement under Article 28 GDPR.

9. Artificial intelligence in delivered solutions

Where a solution includes an artificial intelligence system, the provider gives the client the information needed to meet the client's own obligations under Regulation (EU) 2024/1689 (the AI Act), in particular so that the client can inform end users that they are interacting with an AI system.

Outputs of language models are not deterministic and may be wrong. The provider therefore designs solutions with checkpoints and agrees in advance with the client which steps stay with a human. The client, as the deployer of the system, is responsible for decisions made on the basis of its outputs.

10. Defects, warranty and complaints

The provider warrants that on handover the work matches the approved solution design and is fit for the agreed purpose.

10.1 For all clients

Defects reported within 30 days of handover are fixed free of charge. It helps to describe a defect so it can be reproduced: what you did, what you expected and what happened.

Behaviour caused by the client or a third party changing the code or configuration, by changes to connected systems, by an outage of a third party service, or a request for functionality that was not in the approved scope, does not count as a defect.

10.2 Additionally for consumers

This section applies to consumers only.

Consumers have rights arising from defective performance to the extent set out in Sections 1914 et seq. and Sections 2615 et seq. of the Czech Civil Code. Section 10.1 does not limit those statutory rights and does not run instead of them; the thirty day period is a contractual addition over and above the law.

Complaints can be made by e-mail to business@dsak.tech or in writing to the registered office. The provider issues the consumer with written confirmation of when the complaint was made, what it concerns and what remedy is sought. The provider decides on the complaint immediately, or within three working days in complex cases, and settles it including removal of the defect within 30 days at the latest from the day it was made, unless a longer period is agreed with the consumer. If that period passes without settlement, the consumer is entitled to withdraw from the contract.

11. Liability for damage

The provider's total liability for damage is capped at the amount paid by the client over the preceding 12 months.

This cap does not apply to consumers, nor in cases where limiting liability is prohibited by law, in particular for damage caused intentionally or by gross negligence and for harm to a person's natural rights.

12. Duration and termination of ongoing care

SLA and ongoing care are agreed for an indefinite term with one month's notice, running from the first day of the month following delivery of the notice. Either party may terminate, including without giving a reason.

After the cooperation ends, the provider hands over access, documentation and data exports in a machine readable format on request.

13. Out of court dispute resolution, consumers only

This section applies to consumers only.

If a dispute arises between the provider and a consumer that cannot be settled by agreement, the consumer has the right to out of court resolution. The provider gives this information to comply with Section 14 of Act No. 634/1992 Coll., on consumer protection. The body competent for out of court resolution of consumer disputes arising from these contracts is, under Section 20e of the same Act:

Czech Trade Inspection Authority (Česká obchodní inspekce)
Central Inspectorate, ADR department
Gorazdova 1969/24, 120 00 Prague 2, Czech Republic
coi.gov.cz/informace-o-adr, e-mail: adr@coi.gov.cz

Out of court resolution is free of charge for the consumer and can be started within one year of the day the consumer first raised the matter with the provider. Proposing out of court resolution does not affect the right to go to court.

A note on the European online dispute resolution platform: the platform at ec.europa.eu/consumers/odr ceased operating on 20 July 2025. Regulation (EU) No 524/2013 was repealed by Regulation (EU) 2024/3228 and the trader's duty to link to the platform ended with it. That is why these terms deliberately contain no link to it.

14. Final provisions

These legal relations are governed by the law of the Czech Republic. This choice of law does not deprive a consumer of the protection afforded by provisions of the law of their country of habitual residence that cannot be derogated from by agreement.

Disputes with business clients fall under the courts of the Czech Republic. For disputes with a consumer, the competent court is determined by law and is not altered by these terms.

The provider announces changes to these terms at least 30 days in advance; orders already running are governed by the version in force when they were placed.

If any provision of these terms is invalid or ineffective, the validity of the remaining provisions is unaffected.