I need clarity on wollies terms and condition

I got a Studio W shoe as a gift from the Gift exchange team. I then kept the shoe and decided that I do not want the shoe so when I go to woolies for anything I will exchange it for something else.Today I went to buy a gift card to the value of R500. I then decided to do both Buy the gift card separately and exchange the shoe for something else.<br> <br> The shop assistance then said they will refuse to exchange to me especially if... I was like no ways they cannot look at a person and assume. How do the sell me a gift card and then refuse to exchange when if I do not have the slip and have explained how I got the shoe the same way I will with the gift card I bought for the person. I will not issue her the slip.Ms Nazeema Bull said she will check with her manager. The manager came in look at me and they went inside and spoke separately. I mean whats there to hide in the conversation if they Both going to come to me and say I can not exchange my shoe for something else if I do not have the slip. I asked for the reason Ms Charlene Perera could not grant me any. \Should you not have a till slip we will be happy to exchange your purchase... thats woolworths condition or is it for specific st"