Cashier refused to take item initially bought back

Hi<br> <br> I get to Earthchild Eastgate to return an item I bought beginning of October. I get there, the staff there are having a chat, and I am like okay let me stand in the queue and JUST maybe then they will assist me. After about ten minutes the lady with dreadlocks (Light in complection) (She had no name tag) yells \Can we help you".<br> <br> I said yes and I told her I am returning an item I bought the previous week and however I forgot my invoice and she immediately told me"