Long story short, I've finally accepted that Microsoft has dumped the windows phone, and have upgraded to Vodafone's Smart V8 phone from the Cuba Mall Vodafone store.

The phone works fine with my Vodafone 021 number.

The store transferred my Vodafone SIM from my Microsoft 640XL to a new micro SIM for the Smart V8 phone without any problems.

Today I tried to register for My Vodafone on the Internet and on the phone.

When I try to register for My Vodafone  using the app, it asks for my mobile phone number, then says that the 021 phone number I have provided is not registered on the Vodafone network.

On the Internet I got as far as receiving the confirmation code via TEXT to the phone to confirm my registration, but got an error when entering it on the registration page, and said I needed to call either 777 or the 0800 number.

I ended up speaking to three different people (the first two couldn't help) and all three people told me their screens were showing my 021 number was inactive, even though they could see all my account details including my mobile phone information. 

The third person I spoke to eventually told me that I can only register and use My Vodafone on the Internet and on my phone if I have a mobile phone account with Vodafone.

I have had this Vodafone 021 number since 2009, and it worked fine on all the previous phones I have had. I also receive monthly billing for it with my Vodafone bill.

The 'about phone' screen on the phone shows I'm connected to Vodafone, but the phone says my number is unknown.

Are all these problems caused because I'm an ex Telstra Clear customer?

Additional question: Any suggestions on what I can do with the Microsoft 640LT phone and Microsoft 640XL phone, as Auckland Starship Hospital no longer collects them to recycle or resell as a funds raising cause?

The 640LT is locked (to Vodafone), but the 640XL is not locked.