Have you got the payment 

The AIIMS Toll free numbers are impossible to get. It is just fooling!!!!!!One day I tried for 4 hours continuously . Please try after some time is the recorded message. Stupid.  

Abour wring email to AIIMS: They will never respond to your email queries.

They are supposed to be expert in education and particularly IT . But they are useless. They are also ignorant and don't care about students' mental tension. They have no people to rectify the glitches created by the system.

Hey eloziia , Greetings!!

Yes , you should get the payment back. AIIMS have some norms regarding refund of fees of the candidate .If multiple payments have been made against the single registration it will be refunded within one month from the closing of the registration of that specific course . If still you didnt get the payment back feel free to contact them in this regard.

all the best!!