Protection plan

Yes its possible, you have 45 days from when you receive the xbox to purchase the warranty

Just login to your microsoft account, go to devices and select your series x, there should be some info on contacting microsoft to extend the warranty.

You were actually given wrong advice. Microsoft only covers their own warranty or if there are any added plans through them. They don't cover plans you buy at other retailers. So you would have to go through Walmart. https://www.walmart.com/protection

No sorry I meant did you purchase the protection plan on day one?

I'd like to know this too. The 'complete' package link on the protection plan page isn't working.

While I can't speak into info on the Elite Controller 2, I can speak about protection plans - specifically Best Buy's Geek Squad Protection that was previously mentioned. If you purchase the controller from them, you will have the option for a 2-Year
Geek Squad Protection Replacement Plan for an additional $39.99 (about $1.67 per month). If a manufacture defect or normal wear/tear cause something to not work, you can take it back to to Best Buy (you don't have to go through the manufacturer). If the
problem is not repairable, your product gets replaced or you get store credit if a replacement is not available (out of stock).

I have used several of these plans in the past based on the cost of the product I'm buying, cost of that product, and potential issues of that product. I have had nothing but good experiences when I've had to use the protection plan. Just assess the cost
of the plan with both replacement cost of the product and your peace of mind. If you find it valuable, go for it.