When you sign up with an internet service provider you need to make sure that the account has the appropriate contacts on it.
If it is done through a business make sure that say a receptionist or someone appropriate is also put down as a contact.
Home owners should make sure that both husband and wife and in some cases their children ( if older ) are put down.
The reason is that if there is a fault with the internet ISPs will only talk to the designated people listed and if they have to report a fault then they will only do that after getting authority from a listed customer or contact on the account.