Despite my switch completing on 27th August 2017, I am still awaiting the final bill from my old supplier
Here is part of a message they sent me on 7th November 2017:
"Your Electricity & Gas bills have not been run yet due to an unfortunate temporary technical issue with our system currently.
Please rest assured that we are looking into rectifying this and will notify accordingly of any updates on the situation in due course.
Just so you know, any credit that would be remaining in your account balance once your final bill has been run will be refunded automatically back into your bank account within 28 calendar days.
I apologise for any inconvenience caused however if you have any further queries please let us know."
Isn’t there legislation covering the period taken to send the final bill after a switch?