Why can't I register my Xbox Elite Series 2 Controller?

I have exactly the same issue with the new Series 2 controllers. I ordered the Electronic Volt version, but had to refund it because of the mentioned problem. Then I ordered the Xbox Elite Series 2 controller, thinking a 150€ controller sure can't have these problems, but I was wrong.

So here I am, stuck my old Elite Series 1 controller that still works after several years, but starts to show wear, and I can't upgrade to Series 2 without winning the series-2-build-quality-lottery.

Hi. My name is Brilliant and I am happy to assist you today.

My you kindly confirm where you purchased your controller.

If your serial number is being rejected by the service, I advise that you seek assistance from your retailor (Amazon). They may be able to assist you with repairs or a refund depending on the terms and regulations on your purchase.

I had purchased the Xbox Elite Series 2 Controller, sorry I can't be of more help.

Hello I found this post as I am also having the same issue, I am looking at the serial number on the back of my official Xbox Elite Series 2 controller and trying to enter it when registering a new device. I have a broken joystick and am trying to look up the warranty or initial repairs but I am getting a "We couldn't verify the serial number. Check the serial number and try again." error message but I am definitely entering the serial number in correctly. So confused on what to do and still need help with repairs on my controller.