Poor service

Yesterday I went to Centurion mall to do an exchange(i didn't have a receipt) and buy few items, i was assisted by Cecile and Connie (store manager). After the exchange and the purchase i asked for a copy of receipt for the new items that bought but Connie refused to give me a receipt. Well i do understand the rules of returning items without a receipt, thats why I didn't even mind getting a gift voucher, but my question remains, what if the additional clothes that i paid with my own money are not fitting? I used to work at Mr Price in Rosebank and we used to give photocopies of receipts to clients, so why wasn't I given a receipt?

Another thing is I had to wait almost 5 minutes to be assisted, while there was no customer infront of me, with 4 people behind the tills. I understand that it was almost time to go home, 1 was doing a cash up, what about the other 3?