Can my current supplier prevent me from switching to a new supplier?
What happens when switching contracts - do I need to pay an exit fee etc.?
Generally, a supplier cannot stop you from switching, but there may be an ‘exit fee’ for leaving early, which will usually be stated on your bill.
The only other time that you may have issues with switching is if you have owed your current supplier money for over 28 days, at which point you will not be able to switch until you have paid the outstanding debt.
However, if the amount of time is still under the 28-day grace period, you will be able to change, and the debt will be added to the final bill that you receive from your old supplier.