All India Institute Of Medical Science [AIIMS] — Payment for INICET JULY 2021

I have made 3 payments for registration for JULY 2021 INICET each of 1500 and each time after the payment finished the page didn't load. The next day after i logged in to the account the payment was accepted, but i did not get refund for the other two payments i made until now. Its been more than 6 weeks till date, i mailed them, tried to call but to no use kindly help.