Disgusting Attitude

I went to Woolworths Vangate mall accompanying a friend of mine on Saturday around 6pm, to exchange 2 items of which one was a Studio W top with no receipt as this items where gifts. My friend advised that to the Customer Service teller, she then said they cant take the Studio W item without till slip as they don't have the department in store, which was rather shocking to me as that is not stipulated in their returns and exchanges policy on the slips. When asked to put the item they willing to take in gift card, they refused until I interfered explaining that the gift card can only buy at Woolworths and she wants a boot instead and she will go to exchange the other at another store so that she can then use that gift card to buy the gift. and this was done for me in Cavendish with no issues. To me is a inconsistency in the service provided and the in following policy. The lady shouted with irritation we should keep slips next time if we want refunds and walked off. I did not believe I was at Woolworths knowing them with regards to customer service being vital area they strive to perfect and satisfy. I'm so disappointed with the treatment received.