Worst network provider on the planet! Whatever you do don’t join O2. After being with them for a year plus they then decided to double my payment on a 2yr contract stating it was vat ridiculous. On changing providers 3months down the line they’ve sent me £61 bill saying they’ve given it to a depth collector eventhough I’m with another network and paid off my contract with O2. Worst Customer Service, Worst Network Service it’s day light robbery. They prey on vulnerable being a big company bully overcharging small customers as they know they can’t do anything about it. Despicable