I also have been trying to use my card at Carrefour here in Kunming and it has not worked, but they told me their network has been down and no cards are working at all. I have been able to use it at several other locations though but the hassle factor is quite high. I like the better rate and ability to earn points but wish they would work on the implementation a little better. Interesting that a hotel that had a sign with both logos would not take it. I am guessing if she had been willing to try it, it would work.