Terrible network - mobile data is useless. If you have a 3G signal (which it seems to be most of the time), don’t even think of trying to use mobile data as nothing will happen. More often than not it brings up an error message saying you aren’t connected to the internet, even though your phone says you have a signal. Customer service is a joke. I’ve complained as I don’t believe the network is fit for service and been told the management will review my case and come back to me. 2 weeks later I still haven’t heard anything. I’ve used both EE and Vodafone and both are miles better. Don’t waste your money signing up for o2 as they won’t let you leave early, even though the network doesn’t work properly.