Neetmds. Nbe. Edu.in — payment accepted but site closed for registration

Address:

Mumbai City, Maharashtra, 400084

I applied for neet mds yesterday i. E 27th november. My 1st two steps of registration were completed but the payment step was not accepted saying - 'your action could not be completed due to exception'. I tried doing payment thrice but got same problem but money got deducted from bank account.
Today i. E 28th nov, i checked my registration process and it is saying payment done and bit registration process closed. What am i supposed to do now. Please reply asap. Thankyou.