In order to attend classes you have to verify your vaccination certificate at the National Health Service unless your country issues EU digital Covid-19 certificate (eg. Turkey).
To verify your vaccination certificate an application with the original proof of vaccination must be submitted to the National Health Service (NHS) by sending an application to Cesu iela 31/k3, Riga, LV-1012.
After the application has been processed, the NHS will return the original proof of vaccination to the applicant. The application will be examined within one month upon receipt of the application.