Guru Gobind Singh Indraprastha University — issue regarding the participation fees

I tried to pay the participation fees thrice during the online councelling of b.com hons. In the first two attempts, my account was debited but the fees was not paid. But in the third attempt I was finally able to pay the fees. I still haven't received the debited amount. It has been about a month that I'm facing this issue. Kindly please look into the matter as soon as possible.
Thank you.
CET Roll No. - 9611285