Not allowing to run servers from home is especially vague. So it's not like if only port 25 is blocked

Are you allowed to run a game server, ftp server, web server, ssh server ?

Words first mean what is written in a dictionary or encyclopedia.

Internet : https://en.wikipedia.org/wiki/Internet

If you are not allowed to run server, they are WSP (Web Service Provider) not ISP.

But if you are OK with ISP not providing internet, I'm sure you are fine with unlimited limited or throttled after x, 24/24 access between 9-5 and secured http page as long as there is a padlock favicon ...