New rules on energy bill credit refunds came in from May 2019, but we've found that nearly half of customers who have switched since then and were owed money by their previous energy supplier were not ...

Here we’ve listed the issues and questions we hear most often, along with the experts' answers on what to do if you've experienced these issues. Some 16% of Which? members with smart meters said ...

From working out exactly what you’re really using, to getting together all the right evidence Always check your bill for accuracy – it could be significantly wrong if you have received estimated bills ...