Hey Jason
Just to keep you updated, I have heard back from PayPal.
With regards to the Quantity not showing in the 'new look' PayPal, this is a bug at their end which they werent aware of and will be fixing soon.
With regards to the phone number not being passed back to my database, they have tested it both on their test and live environment, the phone number was always returned in getEC response. Would removing the checkout and re-running the wizard be a possible solution to this?
Cheers
Jamie