Additional • Adds • Agreement • Available • Charged • Choose • Contract • Customer • Customers • Daily • Depending • Depends • Each • Every • Few • First • Full • Generally • Given • How • Included • Increases • Intervals • May • Monthly • Must • Non • Offers • Once • Optional • Over • Pay • Payments • Periodic • Periodically • Product • Promotional • Randomly • Regular • Remains • Schedule • Services • Subject • Taxes • Terms • Throughout • Time • Usually • Years • Yes