I paid in early March for learners and driving lessons

I paid in early March for learners and driving lessons. I was promised classes at the protea Glen branch, told them I can only attend on Saturdays and they agreed to that only to find that classes always get canceled as a result I haven't been to even one class since and the on the 14th of May I contacted my agent and told her because the classes always get canceled and I haven't been to a class in 3months I need my refund back and they said they don't do refunds. They will fix it and accommodate my Saturday . My time has been waisted and just want my refund.