Most pathetic service

On three occasions Superbalist has delivered an incorrect product, On this occasion I purchased a pair of jeans that were on sale. I was given the wrong pair of jeans which I tried to exchange but the app did not allow an exchange only a return so I did the return and followed through with an email stating that I did not want a refund but an exchange for the product that I bought. There was no response to this email. I then called and was told that the reason why I was not allowed an exchange was because the item was out of stock. I asked if the exchange could now happen because the item was in stock and I could get the product, which I was told no that is not possible. Again I requested that a manager call me back as this is the third time they have done this. No callback. I then received a compensation code. I called back the next day stating that I did not want a compensation code but rather the jeans that I ordered. The assistant said that she would request a code for me to obtain the jeans at the same price that I paid. She said she would call me back with an answer or email me. No callback or email. I called again today to be told that unfortunately, they won't be able to give me a code to purchase the jeans at the same price and that the compensation code given the day before will not work on the jeans purchased.

Previously I ordered lipstick and was given a face cream and before this, I ordered jeans advertised with certain material content only to be given jeans with a different material composition.