I've been trying on and off since Wednesday (maybe Tuesday) and I never get it to complete. Until yesterday, I couldn't even get to the form. Now I can fill it out, then get the error page.
How can anything connected to Apple be this technically inept?
edit:
Okay, so I kept trying and got the worst possible (I think) outcome. I kept mashing on the page and the page registered the earbuds...without the apple music credit.
So, I contacted Apple chat and was told that their site is not working right and that they expect it to be fixed by Tuesday and that there is nothing to be done before then.
I specifically asked how I'll get the credit if the serial number registered and got an answer about how there are lots of customers having issues and they know they'll have to fix it.