On a budget? Save money by claiming your free SIM card from giffgaff by typing in your postal address and you’ll get it within a week. You get really cheap PAYG deals from them and no long contracts – you can’t lose! A good way of checking the mobile coverage in your area if you’re planning on changing networks.
Giffgaff use the O2 network so you should have no problems with coverage or service wherever you are. Once you’ve got the card just go online and top up with £10 to activate.