Hi,
> I would like to pay for a basic service ideally as part of a family plan
> and if my son needs long distance, internet, or any other service, he would
> have to pay for it himself upfront.
> The thing is that I would like for the basic services to be always > available.
> Is there any company offering such services?
Having looked into something similar I can say "no", at least not in the United States. The billing doesn't work when part of it goes to "dad", but "son" wants to add to it. All I can suggest is "dad" agree to pay for the added service and "son" reimburse dad.
John Mayson Austin, Texas, USA