- With Bin: First of all, the bin cannot be just any bin. Generally, accounts created for one to three months are free trials provided by the website. Afterward, when the payment system detects that the card does not have sufficient funds, it cancels or does not auto-renew the membership. This happens when the bin used for the subscription is taken from a business or diplomatic card. There is a probability that the account becomes self-paying because the payment system detects the 'class' of the card, such as business, premier, gold, etc., and automatically renews it because it is of a higher 'class.'
- With Sentry (program): First, what is Sentry, you may ask. Sentry is a brute force program that works with proxies, combo lists (a text file with hundreds of emails and possible passwords), and its configuration. NOTE: For each website, for example, Netflix, there is a specific configuration; these are not universal. How does this program work? The program tries each email; password (from the .txt file) with the number of bots assigned to the program to work. Some of these hundreds of emails/passwords will then give you an account that is 100% legal and functional (legitimate owner). This is how self-paying accounts can be obtained.