Although my questions about FB miles expiration are more generic than the OP's in this thread, this seems like the most current/visible thread on FB miles expiration I could find - mods, feel free to move my post elsewhere if there's a better place for it.

I have 2 questions about FB mile expiration...

1. Will the purchase of something via one of the Flying Blue online shopping portals extend the life of one's FB miles?

2. I read many sources that say the only credit cards that can be used directly to extend FB miles are those available only to residents of France, the Netherlands and Switzerland -- for those folks, they can simply make a purchase on a Flying Blue co-branded card. I'm a US resident. But I see that there's an Air France KLM credit card issued by Bank of America (which sure seems to be available to US residents). It's not a terribly compelling card overall, but it does appear to earn FB miles. I would assume that if you have this card and use it, that use would extend the life of your FB miles...does it? This program seems to have lots of caveats and gotchas. Does anyone know if using this card does indeed extend the life of your FB miles?

Thanks.