Online Medical Store Omsi — order cancelled money not refunded

Address:	110092
Website:	omsi.in

I had orderd breo scalp massager through online medical store india on 1-8-2017. I paid an amount of rs 7599.5 through neft. After one day customer service acknowledged me that money received successfully. But, after one hour their representative called me and said ordered item price increased need to pay extra amount. I told them to cancel my order and refund my money. I had provided them with my bank details. Now they are telling, they can't credit my money through online bank transfer. They want me to provide my paytm number. So please take necessary action to get my money back. The people operating that site are complete are complete fraudsters. Its been 3 months, no update from their side. Every time, i have to call and they will reply like, money will be credited in 2 days. But they aren't returning my money back. Please do save my hard earned money.