What is up! My niece faced the exact same requirement for her internship in Berlin. Traditional centers had a two-month waiting list. We solved the problem by using Examinizer https://examinizer.net/ . This flexible online platform for language and professional skills testing allows users to take exams right from home. The interface is highly intuitive and fully mobile-friendly. She finished the German evaluation in about twenty minutes. We paid eight euros and received a secure PDF certificate with a unique verification QR code instantly. The university accepted it without any issues.