Zomato — restaurant didn't accept order, and i still haven't received my refund

I ordered food by partially paying using zomato credits and paytm. The order was not accepted by the restaurant. The customer support told me it's a technical glitch and they are sorry for it. I received the zomato credits back but not the paytm money! Now, when i try to complain about it, i get "we have reviewed your account and regret to inform you that it reflects high amount of credit activity based on your disputed orders in the past. Hence, we will not be able to make any adjustments in this case. It's not my fault zomato partner restaurant's frequently send wrong orders and spilled food. And if your restaurant didn't accept my order, i'm atleast entitled to get my money back!