Vahathi Motors Driving School — Regarding driving classes

I have taken a course of 10 days driving classes and paid the complete amount of Rs 4000.
But I only got 5 classes in more than 15 days. And after 5th class they never arranged a single class. Means I have lost my 5 days classes money as well as learnt nothing due to irregular classes (5 classes in more than 15 days).

I asked for my refund. They did not refund the amount as well as start not picking my phone calls.