My phone is just a pay-as-you-talk one. I bought it about 4 months ago. Today they have sent me a new SIM card with some advice that says if I activate the new SIM card and put £10 on to the phone I will get £30 of free calling credit
To me this seems odd - why would it be in their interests for me to change to another SIM card.
For me it actually would be an advantage, as a few people have my number who I would prefer not. But I'm suspicious.....
Anyone know what this could be about?