> I'd suggest to add further services to the MA, either with standard or
> 'static' costs according to your needs. Uncheck 'Active' for these
> 'dummy' services.
If you uncheck active for the service, then the service will not
be billed! :(
As long as you do not define a set of default attributes for the
service, no one can login using it. Also, you do not have to give
a login/shell to the service either.