Your energy supplier should give you a final bill within six weeks of leaving them (though the majority of customers leaving Octopus get theirs within four weeks).
If you haven't had your final bill yet, don't worry, it's on the way – the handover process can take a little while, particularly if we have to work out an estimate rather than using a real meter reading.
If it's been six weeks since you switched and you haven't had a final bill yet, just get in touch and we'll help.