Shocking customer service for a return

I went to Woolies Mall of Africa to return a top I had bought my wife, for a refund. I had the original till slip and the small card transaction stub that comes with the slip. I had made a purchase for my wife on Saturday after 2pm @ Woolies Melrose Arch. The till operator asked for the card ending with 4 last numbers appearing on both slips. I had explained I do not have that card with me but I would welcome a refund too. She said the policy is for the money to be credited back into the same card used for the purchase or a return/gift/voucher card. She could not point to me excactly where on the back of the slip this was explicity and clearly written/communicated to me as a custeomer! I asked she call someone senoir and she gave me attitude that I would be told the same thing she has tiold me. I then asked this senior staff memeber where it is written and how shoudl I have known. She shrugged her shoulders and I asked for Head Office number, which she gave and I started to make the call. I was transferredt to some guy in Customer Care, who basically re-iterated thatit is the policy and he also failed to explain to me where on the slip this was written! I asked he puts me through to someone else minutes, until another staff, part of management, came and I had to explain to her the story. She looked at the till slip and she could see that a debit visa card was used. She then authorized for a full cash refund. I am unsure why this was not done in the first place? My time was wasted for something that could have resolved on the spot! I am totally unhappy with this experience. I had my original till slip with for item being returned as required on the back of your slips.