I bought a local SIM card so my mobile phone would work in France, one of these:
https://www.sfr.fr/telephonie-mobile/sfr-la-carte/welcome
It says it expires after 14 days, and indeed this is what happened. When I bought it, I think I misunderstood something: I thought it would expire after 14 days but could be topped off, to extend the expiration date, but now I'm having some trouble figuring out how to do this, and starting to think it's not possible.
Can this, in fact, be done, or is it expired and completely dead?
Update
I did find this Recharge site which looks like what I need, but it's not completely clear to me that it will work with the SIM card that I have.