CAT Admit Card — Payment issue

I paid for the online application of cat on 9th sept, 2020 through google pay by scanning the code shown on the screen. It showed payment successful but when i was guided back to the main site it displayed your previous transaction was unsuccessful. But the money rs 2000 was deducted from my account at the same moment. I have also written to their official mail as well as filed a query but there has been no reply from their side.
The registration will close on 16th sept and i am unable to proceed with my application submission due to the money deduction.
I request you to see to this issue as soon as possible.