Unable to complete Device Service & Repair form

My Xbox controller has drift issues and is in warranty.

I have selected "Start order" to return the item, however cannot get passed

"Select shipping address to see available service options" screen. I have tried entering my address in a few ways with no luck. I have checked my address in address book and checked i have valid payment options set. I then tried to request a call back but keep getting

"We’re unable to process your request for a call back. Please try again later."

I do not want to miss my warranty end date because the systems wont let me log a ticket.

Please help

:)