As gas and electricity prices have risen, people have been doing what they can to find a cheaper supplier.
Sadly, problems don't always end when you move somewhere new.
People are seeing themselves switched to a new provider by mistake, money is being held back by old suppliers and some people are being charged twice after the move.
In fact, problems when switching have become more common than customer service - now second only to billing - according to new figures from the Energy Ombudsman.
Matthew Vickers, chief executive at the Energy Ombudsman, said: “Switching energy supplier can help consumers get better value for money and better customer service, so it’s important that they can have confidence in the switching process.
“Our data shows, however, that too often changing supplier can cause issues that take weeks to resolve and require escalation to us as the ombudsman."
Tough new rules to protect customers and stop new energy providers going bust
What you could soon claim
The good news for anyone thinking of saving themself some cash by moving to a new provider is new rules are about to arrive that will force suppliers to automatically compensate customers if their switch goes wrong.
From May 1, customers will receive at least £30 in compensation for each switching problem they experience.
Natalie Hitchins from consumer association Which? sad: "Switching is by far the best way for consumers to avoid rip-off energy tariffs, so it is really worrying to see such an increase in switching complaints including problems with bills and delayed refunds - which can leave customers out of pocket.
“The regulator now needs to deliver on its automatic compensation proposals so that companies have an incentive to get it right first time and consumers are not put off switching - given they could potentially save more than £300 a year.”
