Swastik Medical Store - Medicine selling at high price than other medical stores

I have purchased medicine from Swastik medical store. This medical store is selling medicine at a high price. The first day I put questions to medical store person why are you selling medicine on MRP rate without any discount while other medical stores selling the same item at a low price. Then he told me it's my store and behave with me rudely. So please take action on this medical store and check medicine price compare with other medical stores. One example is scalp soap is of ** Rs in this store while other stores selling the same in ** Rs.