Education Related

Hello Sir, My name is sheakhar As i didn't found the Particular Law to select so i selected the alternative one. My concern is related to Education one. I did my 12th in the year 2007 to 2009 and got the marksheet and Migration certificate from the Assam Higher Secondary Education Council board. Later in the year 2017 i took the admission from ISBM university ( Chhattisgarh) but do have one branch in Hyderabad. At the time of admission i informed i don't have the Transfer certificate and only carry 12th Migration certificate and they informed with migration you can take the admission and complete your education. Unfortunately last year 2021 the university is asking for Transfer certificate to release the provisional and original degree certificate's. Even though i got the marksheet from the university of all 3years but they made it mandatory for Transfer certificate. I clearly inform them that i only have 12th migration and submitted too. I also informed migration is similar to transfer one. Now they are asking to submit the affidavit stating please accept the request for releasing the degree certificates as board doesn't provide Transfer certificate and kindly accept the 12th migration . Need to advice or can we go ahead with submitting of Affidavit on a stamp paper.