If you would like to contact one of the UK based BT Care Team who moderate this forum, they should be able to help you sort this all out.
They can be contacted using this link BT Care Team
They normally respond by phone or e-mail, within three working days, however you should get an immediate confirmation, with a tracking number.
The choice is yours in the end. The UK BT Care Team are a small specialist group of people who take ownership of issues until they are resolved.
This forum is purely a BT Customer to BT Customer help forum, moderated by BT.
As you are no longer a BT customer, why are you posting on this forum?
You said "Today my service is changing from BT and I think I might have a little toast tonight to celebrate. Meanwhile I have 3 more working days before I send my formal complaint to Ofcom."
So please stop spamming these forums. Thanks