Gauhati University — My B A 5th sem exam formfillup payment show to failed but balance deducted from my bank account.

Sir, I am a student of tihu college BA 5th sem Roll no UA[protected]. Registration no 18026273
Sir, I form fillup for BA 5th sem day o 23.04.21 by guportal.in. But show to payment failed and balance deducted from my bank account. Please solve my problem as soon as possible.
Thanking you sir.