O2

Why is o2 suddenly charging me more each month stared out at £37 now all way up to £50

Hi is there anyway to change my billing and due date online. My due date was the 3rd but I am unable to pay my plan on the 17th each month and my next billing date starts on the 19th. Am I able to get that changed anyway as I’m sick of the notificati...

I ordered a phone from here on contract I payed my upfront payment which has left my bank already and I have no email saying it’s confirmed or pending. What should I do