Do you own any Qualifying Products?

Yes, we have multiple items that qualify. 

Grab the serial numbers (take a photo is good) and call Sonos Support to have them look at your account.

Thanks; can do. I also realize that I purchased them on Amazon. Should that matter?

I know the items show on my account because I’ve contacted them in the past to resolve issues. 

As long as they weren’t ‘refurbished’ products from Amazon, but new, it shouldn’t matter, when you log in to Sonos.com to see upgrade ability. If they were new, then they should be showing up with a discount available. The only time (supposedly) that they don’t have the upgrade discount available is if it has been consumed for that device already. 
 

I concur with @Stanley_4, you should call Sonos Support directly to discuss it.

What happens when you go to https://www.sonos.com/en-us/myaccount/user/offers/upgrade

All my products are there. They say registered and serial numbers are there. No upgrade option or info. 

Where do you live?