Contact

Important Disclaimer

The viesapi.eu service is not responsible for managing the VIES System, which is maintained by the European Commission. We are just a private company providing a set of libraries and tools that make it easy to integrate and use the VIES system. Access to the original VIES system is free and does not require the use of our paid tools. All matters related to outdated company data in the VIES System should be directed to the tax administration of a given country that is a member of the European Union. Please read the official FAQ (especially the answer to question no. 4).

If you have a problem with your or your contractor’s incorrect EU number, we encourage you to read the article on our blog: VIES – invalid EU VAT number during verification.

If you have problems with checking EU VAT numbers for contractors from Germany (DE), please read our post: Serious problems with verifying companies from Germany (starting with DE) in VIES.

Address

NETCAT – SYSTEMY INFORMATYCZNE
21/10 Zagłoby Street
02-495 Warsaw, Poland
EU VAT No.: PL7272445205

We are at your disposal from Monday to Friday in following hours 10:00 – 16:00 (GMT+1).

Sales Department

We encourage you to contact Sales Department (phone: +48 222 199 199 or email: contact@viesapi.eu), if you want information about:

  • Cooperation rules
  • What services and products we offer
  • Regarding an individually prepared offer
  • Change account type to post-paid

Technical Support Department

We encourage you to contact Technical Support Department (contact@viesapi.eu), if you want support during:

  • installation and configuration of plugins for online stores
  • support during libraries implementation
  • integration of desktop (stationary) applications with our online services
  • other technical problems (please provide a detailed description of the error and attach logs / screenshots)

Outside of working hours, we encourage you to contact us using the form at the bottom of the Home page.

Let’s stay in contact!