O2

On my billing account, I have noticed 4 recent charges to Premium Text numbers 88101 - Opera telecom, 20 Jan, 30 Jan, 4 Feb & 6 Feb. I have been charged £1.25 per text, and I have not made these calls. Who do I contact about firstly stopping this hap...

I was cold called a couple of weeks ago by a (local) number saying it was Aeriel (a subsidiary partner of O2) and offering me a good deal on my O2 monthly payment, I had upgraded my 02 account to 9Gb in October last year and they now say that I will ...