I understand your frustration! It's taken me a few weeks to get to this point.
I am nearly there, if the onboard partner speciaist I'm dealing with calls me as promised tomorrow to get me signed up.
They are extremely busy I believe, which may be a good sign!?
Here are the details for the gentleman I'm dealing with:
Partner Onboarding Specialist
Telephone: +44 (01908) 538666
I know he's out of the office today.
Hope you get somewhere, but I think your experience is a typical one!
Best wishes, Vanessa