Internet literally doesn't work on O2 when you are in slightly crowded city centre area in Liverpool. I admit that signal coverage is not bad but when internet doesn't work, what would I do with signal. I dug deeper into O2's bandwidth, current bandwidth is simply not enough to serve huge amount if users that O2 has. I believe Ofcom should use its power to stop O2 from signing new customers until 5G is more widely available and/or until frequency refarming (using 2G/3G frequencies for 4G services) is completed. I ended my contract and paid £144 but it worth every penny, now with another operator and I have working internet once again.