Hello. I'm sort of a BA program noob, but despite that, I'm already at 540 TPs, so only 260 more needed for Gold, given my French residence.

My account says the following:

I have some questions related to the difference between "Membership year" and "Card expiry date":

1) Until what day do I have to earn the extra 260 TP's to get to Gold?
2) Until what date will I hold Silver?
3) If I make it to Gold, for how long will I have Gold?
4) Lastly, I know I need 4 BA metal flights, but my question is: Since when? I'm trying to determine if I've already made the 4, as some of my BA metal flights were a bit back.

Thanks a lot! ^
-BJ