Which university are you at? depakote side effects in adults From late January, Ofcom wants to protect the public from "unfair surprises" by letting customers exit their landline, broadband and mobile contract without penalty if their provider changes the terms of their deal. All four mobile networks have imposed price rises on even fixed-term contracts. O2 most recently pushed through a 3.2% rise for 7 million customers, and Vodafone "simplified" bills by rounding them up to the nearest 50p for 10 million customers, a move branded "shocking" by Which?, the consumer group.