Abstract: A method of associating a first customer account for an article dispensing machine with a second customer account at a content provider. The article dispensing machine has a user interface. The method receives a unique customer identifier through the user interface, accesses the first customer account based on the unique customer identifier, and associates the second customer account at the content provider with the first customer account. The second customer account can include a customer subscription with access permission for a digital media selection at the content provider. In addition, the unique customer identifier can include at least one of a credit card number or a debit card number, and the method can apply a hash function to at least one of the credit card number or the debit card number to produce at least one of a hashed credit card number or a hashed debit card number.