Aiimsexams.org — Ini cet 2021 july form issue

I have paid thrice and the payment has gone through my side aswell yet i cannot proceed further. I hv been calling the helpline numbers since 2 days to no avail. Now it says the registration is stopped!? Kindly help and address the issue i request Aiims ini cet authorities to resolve the issue and extend the registration as the problem exists on their end.
Also plz do refund our amount.