Citibank advertised that if I use my credit card for purchasing home furniture, I get back 5% on my purchases.  I had several other credit offers in the mail, offering various % back on purchases, and I decided to go with my existing Citibank credit card because it offered the highest % back.  When it came to paying the 5%, they said that the merchant classified itself with Visa/Mastercard as a "specialty" merchant, and they will not pay my 5%.  I contacted the merchant, the merchant stated that their business was set up years ago, business classifications were different back then, and they are more than happy to verify  for Citibank that they are EXCLUSIVELY a children's home furnishing store.  They also have a website that confirms this:  XXXX  My purchase definitely qualifies for the cash credit.  I contacted Citibank again, and customer service has no interest in verifying any of the facts.  They just simply denied my cash back.  I could have used another card that maybe gave back less, but no tricks involved.  There was nothing on the website saying that if your merchant set up its business decades ago and is not classified this and that, you won't get any cash back. Citibank uses common sense, plain XXXX in their advertisement to pull you in their misleading deal ("5% cash back on home furnishings") but then have tricks to get out of their obligations when it comes to paying.   I could have had money back from other credit card companies and not use Citibank in the first place.  They owe me money as far as I am concerned.  I have been a Citi customer for YEARS and paid my bills on time.  I expect to be treated with respect.