I just found the company three? It looks like they have a unlimited data plan. But it says it limits you to 12gb is that correct? Also when you click on details about the unlimited 35.00 plan it shows charges for checking voice mail, and also video calling? I'm confused as it isnt specific of what they actually offer for unlimited. Can anyone check this link and let me know if this would fit my "unlimited data" or at least 20+gb in a month usage or so? Thanks again.

https://www.three.co.uk/Store/SIM/Pay_As_You_Go