Product registration not working?

[Synergist]

I've just tried to register my recent purchase - entering the serial number onto https://account.asus.com/registerform.aspx, the page correctly detects the motherboard model, however when I submit the form it says "serial number incorrect!".

using the other registration form at https://www.asus.com/support/Product/APRP/?lang=1033 , when I submit the form it just shows "*register return null" in red under the sign-in form.

I've tried a few times, triple-checked the serial as printed on the box sticker and retyped to avoid any human error. What's up? Is this a known fault with the site?

The ROG Elite registration form also seems broken (I had chosen the PDF of my invoice before submitting):



And incidentally, forum-based image upload also seems broken. It can't retrieve an image and auto-reference locally, nor can I upload a PNG direct using the upload form.

[Nick G]

Following, same issue