That's PN for u. They getting worse now. My mate just ordered from PN, the next available activation date is 11th October. So, he cancel it. And went to BT instead and got activation date for 13th September.
PN is useless now.
If what you say is true then Openreach need reported to ofcom as all ISP's should have equal treatment/priority.
Are you sure you are providing a fair comparison? What are BT installing on 13th September?
A mere 6 working days from now...