CC Avenue — failed transaction through ccavenue not credited back to my bank account

Address:

Kanchipuram, Tamil Nadu, 603202

I have done a month back two different transactions to pay my house property tax in epanchayat portal and while paying used upi option in bhim and it redirects to ccavenue through them the said transaction amounts got debited from my sbi account. But both these amounts didn't reach the panchayat account against my property tax payment account hence i raised an issue. After that one transaction amount reverted back to my account but the other one not. I sent many mails but no response till date.