False Marketing

I’m a huge fan of this brand and I have a sizeable collection of different item and I normally order all my merchandises online however in July when your sale started I went to Fourways mall as I wants a lot of stuff. The lady who assisted me was Lebo and she was really helpful but when I said I didn’t want to buy certain items because of the colours she advised me I can still buy sale items and later on when the sale is over I can come back and exchange with no extra cost. Today I went back to the store to go exchange and she told me told me that your company policy has changed about two weeks ago and I won’t be able to exchange for the colours I want unless if that was at an extra cost which find ridiculous and I refused to pay extra as this was not the agreement for my last visit to the store. I want to understand if this is how your company do business by misleading customer for the sake of sales and to understand your exchange policy on sale items. Now I’m stuck with colour pots I don’t like :( oooh the manager is aware of this and nothing was done anything about it !!!