No digital service will allow you to pay only once

Ahem.

I’m a SDF user, so I am living proof that there exist digital services that will allow you to pay only once. Heck, they gave me a whole shell session and web space as well as other few goodies (that I’m far too lazy to use I’m afraid). And all I had to do was to fax them some money once and never ever have to think about it again.

If digital services won’t give you an option to pay once and instead force you into the rent seeking grift, it’s a skill issue on their end.