I bought several items in the M&S sale. Couple of things didn't fit stupid sizing so I returned them for a refund. The sales assistant couldn't find one item on my receipt and said I could only have a credit note. I knew it was the correct receipt and I wanted a refund so she took me to customer services. We went through each item on the receipt to try and identify which one it was as it was just not scanning as any of the receipt items. Turns out I hadn't paid for it 
. I had had no idea when i bought it as i just threw the pile on the counter, and paid when asked. I hadn't counted what was scanned or checked my receipt. Who does! It seemed that the original sales assistant had missed scanning or charging for the item.
So, there we were at the customer services desk, with me trying to return a dress I had never paid for, though i hadn't known that at the time. The sales assistant said they had to keep the dress and there would be no refund or exchange and they would out it back out for sale. I accepted that I should no longer be asking for a refund because it wouldn't be right since I hadn't paid for it in the first place. I did ask him if he could at least put the dress in the Oxfam box by the desk (M&S have a charity clothing collection scheme). Since the shop had already lost the dress through its own incompetence so it didnt seem right that it should profit from me bringing it back. He said he would ask his manager but I knew he wouldn't and it was a fob off.
I left the store feeling a bit off. If I hadn't brought it back then i could have ebayed it or given it to charity shop or waited til i slimmed into it. I lost myself a free dress!!! Ok ok I know that would be wrong and I'm honest as the day.
Has anyone else had this happen to them or have got unexpected free stuff?? Cheer me up!! and share some of your windfall with me