We regstered our vodafone PAYG mobiles about a year ago when first alerted to the need to register before november this year. Queued up, handed over NIEs, passports etc and went through a thorough registering process.
Thought I still better check that we were registered.
Lucky I did 'cos after waiting 30 minutes, the lovely lady in the vodafone shop told me without a hint of irony: "Oh you registered it before February this year. No that doesn't count. I'll need to do it again."
So don't be surprised if you behaved promptly and you no longer have a mobile when you return to Spain after November 9th.
Doncha loe 'em
