paytm playing fraud

Paytm is playing fraud with the customers. The merchants may also be involved in this with them.
They offer high Cashback deals on the website and take orders. Then they cancel the orders and block the paytm ids from applying further coupons. I too have the screenshot of the same. Contacting the customer care, they just say that you have exploited the refund and Cashback policy of the company and thus the account is suspended for uncertain time. They say that it is automatic and can not be monitored by them. This is my 3rd id which is blocked without any reason.