maggie rich tomota ketchup - charged more then the mrp of sauce bottle

i purchased maggie rich tomota sauce bottle *f ***gm from " V mart " retail limited theme colony kedia palace road murlipura jaipur raj. ****** on ** oct **** mrp on bottle is *** rs but V Mart retailer charged *** rs from me. Invoice no of bill is M******-****-F**. Description no of sauce item is ************* and HSN Code of the item is ********. I just went through kidney transplant just befire * month ** days beacuse of this incidence i suffered very much because i again went to v mart to show them the bill amount and mrp on bottle. tab waha cash counter par jo person the unhone kaha ki ham apko apka aane jane ka kharch de denge unki is baat se muje meri self respect ahaat huyi h kyoki unhone mrp se jyada charge kiya or upar se muje ye baat bolkar mentally harrase bhi kiya.