Hi Our previous supplier British Gas are waiting to hear from you about the final readings. Can you let me know where you are with that, please.
@Pogcottage, switch readings go via a third party for verification (which British Gas are well aware of), so it can take a few weeks before your previous supplier issues you your final bill.
I suspect your readings will have been sent on just fine.
Unless it’s been more than a couple of weeks since your switch date, I wouldn’t worry about it yet.