IBPS — amount debited twice

Address:

Lucknow, Uttar Pradesh, 226016

I have applied for the post of sbi po on 11 may, 2018 and i have made several attempts to pay the fee and every time i got an error message, on one such event my account was debited but the status was still the same so i tried it again and this time i was able to pay the fee. I paid the fee on 12 may, 2018
So account was debited and i have waited a lot for the refund and still waiting.
When will i get the refund?
Reg no: [protected]
Mail id: [protected]@gmail.com