Rajasthan University Jaipur — Fee paid twice

I did transaction on dated 24 Feb 2021 via credit card and the amount was deducted from my account twice and beneficiary account credited twice too.
Details are as follows:
Student Name : Monika Kotiya
Father's name : Tarachand
College code. 423
Category 3
Course name : Ba 2nd year open
Credit card no. [protected]
Amount debited Rs 3500 twice.
Initially Transaction was failed of amount Rs 3500/- and When i did another transaction of same amount at that time then both fees amount transaction successfully done.
But in my credit card statement payment was deducted twice with the amount of 3500 and 3500 .
It should be debited only once.
Refund my 3500 amount asap.
So please resolve this issue as soon as possible and inform me accordingly.
I complaint it to icici bank dept also but they said that amount will be refund by your dept.
Challan no. 30672223 and 30673465.
I deposited challan no.30673465 in university.
I deposited fees twice through credit card. So kindly refund my fee amount 3500 of challan no. 30672223 asap.

Thanks and Regards
Ravi kumar
[protected]