Just finished speaking with Ray and we got to the bottom of most of the issues. He said to post in here for any others.
1) Still having a problem with the jQuery Validation on the phone number fields. I want to allow only numbers and spaces but when I edit the validation via WebAssist > Forms > jQuery Validation it doesn't update.
2) When I click "continue" (non PayPal) I am shown an address just above the Payment Info header. This only appears to be the billing address though. How do I display the shipping address (Delivery Information)?
3) When I click "continue" (PayPal) I'm back to having jQuery Validation problems again and it doesn't submit. Again, only one address is listed.
Appreciate the help, as ever. Thank you.