Refunding credit after switching suppliers

Molly_Magic_2

Could anyone tell me if there is a requirement for energy companies to refund credit balances within a certain timescale when switching suppliers?
We switched from Extra Energy in November as they didn't provide a bill, estimated our usage and then increased our monthly direct debit by 200% - without telling us. As a result we built up a huge credit balance and as I was unable to contact them (I tried emailing, phoning, leaving messages etc) we switched suppliers.
I'm now concerned, as I still can't get through to anyone, about them returning our credit balance.

System

Ofgem requires suppliers to take 'all reasonable steps' to send out a final bill within six weeks of the customer switching suppliers showing everything that is owed.

Your old supplier will not raise a final bill until the meter reading that YOU provided to the new supplier has been through a third-party to check it against historical usage for your property. If your old supplier disputes the closing reading then this can delay the whole process by up to 12 weeks.

I would contact your new supplier - who is responsible for the switch - and ask them whether any readings dispute is ongoing. If not, then raise a formal written complaint against EE.

r2015

Ofgem requires suppliers to take 'all reasonable steps' to send out a final bill within six weeks of the customer switching suppliers showing everything that is owed.

Someone should tell the Coop that, I switched from them on the 24th September and I am still waiting for my final bill.

I have phoned them a few times and each time I am told that it is being dealt with.

[Deleted User]

Complain if it's anything over 6 weeks late.

http://www.resolver.co.uk/complaints/energy-complaints