O2

I'm on monthly tariff of 4G 20gb data.. unlimited texts and calls.. the thing is.. the 4G I supposed to get is not even 1G.. everything is slower.. I've been trying for the last 2/3 weeks to get hold of someone on the live team but seems to be having...

I'm currently on a 6 month sim only contract which gives me unlimited calls and texts and 20gb data.. but my query is.. I'm looking for unlimited data also and I'm willing to pay extra costs for it... please could someone please help out?