I have purchased multivitamins and masks from the website www.orogoldcosmetics.com. I got the multivitamins, but after a week I had an allergy and decided to return the multivitamins back. The seller agreed and told me that I could change these vitamins for any other. However, when I changed, he told me to pay the additional sum and he hasn’t returned money for the previous order. I don’t know how to react.