PayUMoney — Fraud and cheating

Address:	Hyderabad, Andhra Pradesh, 500044
Website:	expressblaster.com

I made payment to Sanjay Kumar of expressbalster.com a email marketing fraudulent company based out of New Delhi, payment gateway was payumoney on nov 16th 2015 I availed the services for 1 year with the merchant expressblaster of sending 15 lakhs every month, after few days i noticed he was not keeping up his word of creating campaigns and sending the emails. after much altercation he started sending the emails and it was very slow like 5000emials per day and after a week of sending some 40000emails and i didnt get any response( i am sure all the emails went into spam folder) tracking site showed only 249 people saw and opened my site on 26 november 2015 i told him that iam not interested in his services, and on 27 th notified the payumoney company of the same, and on 28 th the merchant had shut his business and i came to know of this only on 5th december 2015. after weeks payumoney is still not resolved my issue Although buyer protection services is assured by paumoney. What is the legal course of action i can take.