Virgin isnt the biggest brand in the mobile industry but they have some fantastic deals to offer! All Virgin sim only deals are available on a 30 day rolling contract so theres no long tie ins. A sim only contract is whereby you decide that you dont need a new phone because your current phone does its job perfectly. With a sim only contract you dont get a mobile phone and instead you get just the sim card. With no 'free' expensive phone in the deal, these savings are then passed on to you - the customer - meaning you can lower your monthly phone bills as well as getting a more attractive deal.