Treated unfairly as customer

To whom it may concern I must say that I am very disappointed with the service i received from the Glen store but if that's how they treat their customer no wonder they are performing so bad in the market. My husband bought me a make up from the Revlon counter he mentioned there was no consultant so he took a bottle that he looked like the one i use but the color was too light i then went into the store requesting that it be changed and I was told because i didn't have a receipt they could change it and i couldn't believe the reason they gave that foschini and clicks are selling the same make up not even to make an effort to check if i normally purchase the same make at Edgars then make a decision from the. Even the manager by the name of Thabiso also said the same after such service I will close my account and rather buy at clicks caz now am sitting with a foundation that i can't use and don't understand that all stores are using the same code is there no unique code