HARD-UP households have been warned they could be slapped with charges simply for wanting to change energy companies.
Suppliers can charge a security deposit to customers looking to switch over to them.
This usually happens if a customer has a poor credit score.
Suppliers typically run credit checks on customers looking to swap to make sure they are in a position to pay their bills.
If there are concerns that you may not be able to afford payments, suppliers can charge you for a security deposit.