I have a phone with dual sim card reader in it connected to my sim. I've been using it with a PAYG number and a special sim that gives me 1000 free texts.
That special sim has expired, and I got another from t-mobile. I try to ring and get a tri-tone - can't dial the activation line. I use saynoto0870 and get a free phone number and ring 'em. They tell me the phone is blacklisted!
Well, that's odd, cos I can still make calls on it!
I ring Orange and get told no, the sim card is fine and t-mobile is talking rubbish. I ring o2 and get told the same - no problems on the phone. Ring vodaphone (I've got a lot of sims) it's fine!
I guess the test would be to stick a virgin sim in it ;- )
anyway... I ring lost and stolen on t-mobile and they retest and their engineers tell her it's definately blacklisted. She won't elevate my call, won't pass me onto a customer services rep or anything. Even customer services won't pass me onto anyone else.
I tell 'em all their technical people need to do is ring o2 or orange and they'll be told otherwise - the blacklisting system is supposed to be interlinked! But they're not having it!
Well, most people would say 'who cares' but I'm a bit of a git when it comes to these things. I'm going to harass them to the ends of the earth just for the satisfaction (and compensation) of them giving me a free sim card and 1000 free texts. Call it perverse, call it spam, call it what you will, but I enjoy making large companies cry.