Called to ask if they accepted SPAFINDER gift card...

Called to ask if they accepted SPAFINDER gift cards, they say yes so I set up an appointment, after my hair and make up was done, I wanted to pay using the gift card, they told me the card # was invalid and could not process it, I've called the card costumers service and there is nothing wrong with the card, this salon just didn't wanted to take it, I ended up paying over $200, will not use their services again and I don't recommended to any one...