Bad attitude - Eastgate - overdue return

I made a R2000 purchase on 17 October and had about R600 worth of returns from that purchase. Time slipped away and when I went in to do the return today I was reminded that the 30 days had lapsed. The very grumpy supervisor busy at the next cashier reiterated that nothing could be done. You would think I was trying to return 6 month old items....! While I was still trying to find out if anything could be done and whether I could possibly exchange the clothes and school shoes that were too small, she turned and mumbled to another staff member giving a clear message that she was done with me. I put the items back in the bag and walked out, infuriated. I have been an account holding customer for years and years but this obviously isn't taken into account when the customer is asking for a special arrangement. Quite honestly, between this and the new costs that have been forced on the account holders I think its time to close my account for good.