debit crad payment charege

Location/place: indore

Name of company/service: M/s karishma fabrics(Mill’s Retail Show room),kasrabad fata p.o. maral sarvor,a.B. road 451660, khargone(M.P.)

i purchase Rs. 660.00 t-shirt and cloths from the M/s karishma fabrics and he take 2% extra payment charge, because of payment done through debit card, mean to say i pay Rs.674/- for same purchase.

he give the bill and receipt for same kindly take the action for same,