What is another item that can be included with ramen packages sold from vending machines ?
Doug M. Sanford of " Vending Times " notes that " many vendors today do not remember the urgency with which industry leaders called on their peers to install coin mechanisms that held the patron 's money in escrow until the vend was made ; to post a telephone number that a customer could call to report a failure and request a refund ; to make sure their drivers were cleaning the machines adequately and replacing burnt - out lamps ; and so on and on " .