Bad Customer Service

I went to return an Estee Lauder Concealer which i bought there under advi*****t from one of the consultants from the cosmetic department,unfortunately it did not match my skin tone. I spoke to one of the cashiers who assisted me and gave me good customer service and went to call Shereen to come and authorize the exchange/refund however when Shereen came through she rudely told that she will not exchange the concealer. When i asked her why not she attacked me and told me very aggressively that "do i not know that during this time of COVID19 they do not exchanges".When i asked her what i should do with the concealer she told me that "its none of her concerns".The crux of the matter is manner of approach because she belittle me and made me feel that she does not value your customers. I would like Shereen to go back to induction and be taught how to deal with customers irregardless of their race as she threw this tantrum in front of her junior staff which shows lack of leadership on her part. I would appreciate an apology from her and be given an opportunity to return the concealer.