@TomLis, I would suggest getting on italki. There are really good teachers of many languages on there and the rates are very reasonable. Not only are there very experienced teachers on there who will help you prepare for language certification exams, there are many people on there who would practice speaking German with you - for free - in exchange for help with English. For paid services, you choose when you meet your tutor and how long the lesson is. Don't allow yourself to get too set on getting lessons paid by RAV. There are many ways nowadays to improve language skills.
https://www.italki.com