SASTRA University — Refund amount

I have joined in Sastra University in B.tech ( COMPUTER SCIENCE vide Admission number :BTMTI2116522 ) and attended some classes. After that i got seat in NIT so that I have withdrawn from Sastra on 1st week of NOVEMBER 2021, according to university norms the fee will be refunded if my admission is filled by a lateral entry. but still i didnt received any money. Please resolve the issue and credit the amount to my savings account, given at the time of admission.Thanking you sir MUKUNTHAN. V