Site seems to be down but xyz gave a domain away to my company if we did some promotional things I really didn't care about (using their domain essentially ever

Site seems to be down but xyz gave a domain away to my company if we did some promotional things I really didn't care about (using their domain essentially everywhere, including the code base so it'd be api.[domain...], they actually did check this). My boss wanted it but I mostly ignored it, too many actual things to do. Xyz was pretty aggressive, multiple emails a week, we never satisfied 100% of their needs. We used it on business cards, wrote a blog entry, advertised them for free, made it the primary domain, it was never enough. It was one of those high maintenance b2b partnerships where you're thinking "ug, screw these people" So we let the domain lapse after I finally convinced him it was a complete non-priority and then they followed up to with renewal offers in the thousands of dollars that we had no intention of spending, almost as if they were trying to play hardball on something I didn't actual want. I have their emails on a filter, I'll go find the last one they sent. Ah, may 1 2019. This one person always used a smiley face in her subject line even when writing some thinly veiled threatening email telling us to do stuff, it was fun. They appear to be yet another snake in the game which is fine but it taints every pro-xyz thing I see since I know they have account managers that dictate and follow-up on astroturfed PR campaigns. I'm also violating their NDA by disclosing this but that was my (now ex) boss who signed that paper, I'm in the clear.