Hi, I purchased 3 x Fitted Sheet and Flat sheet sets, they arrived today and it just says fitted sheet/2 pillow cases. I contacted the seller who argued it said 1 fitted 2 Pillow cases, I informed him it didn't say that, I went back to my ebay page and whilst I was on it, the words came up, "The listing below has been updated by the seller" I refreshed and looked, they have removed the flat sheet off the advert, but not put Pillow Cases included as I think it was a rush job to get it altered. How do I go about keeping the fitted sheet and pillow cases but asking for the flat sheets to be sent. They have advertised the wrong item, ive paid but now wanting me to return them......................................Help please and ty