Pipex Communications is the overall company.

Pipex Internet is the original Pipex and any purchased ISPs that have been integrated.

Pipex Homecall is the old Homecall company bought earlier this year by Pipex for its phone business. Pending integration, Pipex Homecall broadband is still provided by Tiscali.

If your contract is with Pipex Internet then your broadband should be from them, although the phone might be with Homecall.