Ive got an EE Double Speed Data Sim, 32GB which I get 50% Discount on, works out about £15 a month, your welcome to use that if you want to foot the Bill on a month to month basis Varche, or if you wanted to take it on I could probably Transfer it over to you as a Family and Friends Transfer, just need to check that the Discount will go over with it.
Its a Data Sim, so no Mins induced, does have 100 Texts per month included though, and it has an Roaming Allowance included, cant remember exactly what now, Tethering not a Problem, so can be used in a Phone (Hot Spot), Tablet, MiFi Device or Mobile Broadband Device (which is what it was designed for, hence why its one of those Double Speed jobbies)
Its out of Contract now, so its effectively a 30 Day Contract Sim, so as per norm, 30 days notice to Terminate, one of my Sons is currently using it at the moment until His Broadband gets connected which I think is in the first Week into January.