Noip isn't free? I have 3 domains there for years and I haven't paid them once. Some time ago they started requiring that I mark the domains active each month

Noip isn't free? I have 3 domains there for years and I haven't paid them once. Some time ago they started requiring that I mark the domains active each month. I wrote a script that intercepts that email and logs into their site to reup the domains. Recently that script broke and I haven't bothered to fix it because logging in once a month is a nothing burger.