False Marketing

I collected and kept my stickers for the knives. I only had one book but because I do not have other books for my other stickers I cannot get the knifes. Spar promised to honour all stickers if you collected the 20 for the book. They were out of stock now that stock arrived they do not want to exchange without the books. I feel it is unfair I did all my shopping there just to get the stickers. False Marketing.