If you are interested in specific topics before starting cooperation, please take a moment to review them. They are fully transparent and available on our website.
It is possible to cooperate on a one-time basis – a single order, or on an ongoing basis – multiple orders per month. If you would like to learn more about ongoing cooperation, please click on the article “ongoing cooperation.” Cooperation always begins with the signing of a purchase order, which we will send to you. You can sign the order electronically via QES, via “Profil Zaufany” or manually. You then send the signed order back to us. After that, services can be delivered. A request for a quote should include:


After sending back the signed purchase order and accepting the general terms, the service execution process begins. If necessary, a contract will be drawn up, especially for outsourcing services and long-term cooperation. You will be assigned an agent who will perform the services for you.
All parameters of the services will be agreed upon, including technological tools, procedures, and communication channels. In this stage, we will agree on:
Before starting cooperation, we will provide you with detailed information regarding billing. We are a registered VAT payer in Bulgaria. Services are provided to both companies and individuals within Europe and beyond. For services provided to individuals, the applicable VAT rate of the customer’s country will be added to the invoice in accordance with EU regulations.
Standard payment terms are 14 days for companies and 7 days for individuals. All orders and invoices are issued exclusively in EUR. Key points regarding billing:
Czeska Strefa Ltd.
BG208491247
Antim I St. No. 14, 2nd Floor
1303 Sofia, Bulgaria





If you can’t find an answer to your question here, don’t hesitate to contact us via email. We’ll be happy to respond to every inquiry.