Signed up for 12-month sim contract in January. So this is a contract right for the sale of services right? So it should stay at £12 per month for the term of the contract? But in April, up goes the monthly fee to £13.11 with no warning. Noticing this, I called customer service just now to explain and the adviser was most rude and un-understanding. Apparently there will be a £50 charge to leave the contract now, or wait until next January! "Oh it's all in the terms and conditions" apparently! That's not what I was told when signing up, and not what I consider to be fair or equitable. Vodafone should perform their side of the bargain for the agreed fee, and if they decide to change the fee I should be able to pull out. Appalling - Avoid Vodafone at all costs