My Amazon account was inactive but I still sold something?

Basically the title

Mr Amazon account was inactivated. I was fine with this, i knew about it, I moved pretty much everything to Etsy, it’s been inactive for months

Got an email that I had sold an item. I logged in and saw that it was still inactive, figured the email was phishing and ignored it. Did not reactivate

Today I got a notification on the app that I needed to ship the item

So I logged in, reactivated the account and yes i had made a legit sale. I shipped it, might get dinged for late shipping, but whatever

What on earth? I thought deactivated amounts couldn’t sell items?