Levi's India — Wrong bill

Address:	500094
Website:	levi.in

I have purchased two tees at levis orion mall and was provide a wrong when i have seen it back home, it mentioned another extra tee of 999 rs and a deduction of 367 and at end mentioned as 632 amount is paid as cash, where i dint pay in cash.
When i called up and asked they said they will check and revert back.
Then i got call after few minutes and stated that bill was previous customer deduction so if that is the case why is it mentioned as added component in my bill.
I have shopped at levis from almost 7 years and min of bill of 10k at least in three months. You can check my card number with mobile [protected] and this is the first time i felt something wrong and first time to compliant.