on 30-12-2018 10:10
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
on 30-12-2018 10:26
It does sound as if you have been caught up in a premium rate 'scam'.
Apart from the link above, you will find this site very helpful as well https://payforitsucks.co.uk/
You can also contact customer services https://www.o2.co.uk/contactus and ask them to apply the following two bars to your account
- Bar all Direct to Bill Debits
- Premium Bar (calls to premium numbers, 090, 070 etc.)