I also had a burnt fan with this card, and XFX sent me an entire new cooler, with both fans.
Seems like this card is using very bad quality fans, FirstDo or something, they don't even have a webpage.
How did you contact XFX? I have two of these cards and the fans need constant attention.
Through their support page. You need to register the card with them. I was offered to return them the entire card or have them send the replacement cooler.