GST ITC CREDIT

DEAR SIR / MAA'M

MY NAME IS FAHIM SHAIKH I AM RUNNING A DYEING CLOTH BUSINESS 

LITTLE BIT QUERY I HAVE THAT I HAVE TO CLEAR WITHIN A WEEK 

ACTUALLY I HAVE A DEALER OF GAS CYLINDER WHICH WE ARE MAKING PURCHASE EVERY MONTH FOR  DYEING A CLOTH

AT THE TIME OF LOCKDOWN THE GAS SUPPLIER HAD ISSUE 20 BILL TO ME OUT OF THAT 10 BILL IS CORRECT AND BALANCE BILL IS BOGUS BILL

AND I HAVE TAKEN ALL BILL CREDIT IN GST ITC BUT NOW I HAVE TO CLEAR ALL THE MISTAKE OF ITC I HAVE TAKEN OF BOGUS BILL

SO HOW SHOULD I CLEAR MY MISTAKE 

KINDLY HELP ME OUT