Mmm sorry ! It seems i forgot to update this thread !

Some time after my last post i tried again to contact CS and after a few try i was told to register on some "special thing" on AE (sorry i don't remember what it was exactly but it looked like i was kind of registering on AE again) and after that (and a bit more waiting iirc) i was able to pay mith my Visa again.

Note :

From what i can guess my account was tagged as suspicious and not allowed to use any payement method (iirc at some point i tried to pay with my gf's card and with paypal and nothing worked) until everything was checked again.

The sad part is that their CS was totally cueless about what was happening so it took several weeks to get things sorted !