O2

Thank you! I've just done everything I can. 

I just received the same call. The 1st time I hung up and he called back using the same number. At 2nd time he called back with a different number. For ref: 1st No.-02082240077; 2nd No.: 01278227004 (Bridgewater). If it is a real call from O2, I apol...

Thanks. I tried all I can. I can receive & send messages so the sim card is ok.