Bhadra Gas Agency — excess charge for lpg hose

Address: 560019

Today I purchase a LPG hose from Barat Gas Agency- Harikrishna Enterprises, Bangalore.
I made payment of Rs. 225, for the LPG Hose thro' my Credit Card.
After coming home I realized the MRP mentioned on the cover is Rs. 190. When I asked the person selling this hose, he says the excess price is due to GST implication.

I want to complaint on this and need the Rs. 35 overcharged be refunded and there should be a price list board at the Agency on all the items being sold by them.

JAYARAM P N
Bharat Gas Consumer No. 33001
Harikrishna Agency, Bangalore