Citruseazypay — Did not credited to Receiver account

Dear sir, i have made payment to ca institute on[protected] And[protected] of Rs 5510 (total 11020) each time but amount did not credited to receiver account, i used to pay hdfc net banking it shows both the time as

Thank you for using HDFC Bank NetBanking for payment of Rs.5, 510.00 from A/c XXXXXXXX to CITRUSEAZYPAY

so plz do the need full to get my amount refund