Tasmac — Overcharging and denying to give invoice

Address: 600042

I bought 1 signature rare whisky from elite tasmac, phoenix mall chennai on jul 1st 2017. The mrp is rs 720/- but they charged me rs 755/-
I asked for invoice. They denied to give invoice.
I paid by debit card. I have the receipt of the transaction.
They charge extra on mrp for all the brands they have.

Dipankar
[protected]
[protected]@gmail.com