I also got this email and it has to have been at least a decade since I last used FogBugz. Any payment method I had on my account would have long since expired

I also got this email and it has to have been at least a decade since I last used FogBugz. Any payment method I had on my account would have long since expired so I wasn't worried about actually being billed. Yet I still tried to find a place to login, maybe get a little nostalgia from whatever issues I last logged in the system, and likely begin the process of getting my account officially deleted. However there doesn't appear to actually be any way to login to FogBugz. I don't understand what this company is trying to do. Why send out "you owe us money" emails without having a website that at least functions enough for people to pay you? What is their goal here? Even if this is a scam, it doesn't seem to be a functioning one.