service or consumer item with two different payment??

Question

please tell me a service of consumer item with 2 different payment options: up-front charge and non up-front charge

Answer 1

Telephone long distance services:

You can buy a prepaid card at Wal-mart that gives you $20 of long distance.

Or, you can call a company like AT&T and arrange for a monthly service where they bill you at 7 cents a minute (with a minimum monthly charge of $7) and they will bill you.