When customers report seeing two charges on their bank or billing statements, it's usually the result of a customer accidentally creating two (or more) accounts and having two active subscriptions.
Alternatively, a customer's payment method will occasionally fail one or more times before our system is able to collect the monthly subscription fee. In some cases, this makes it appear as though duplicate payments occurred within the same month.
In either case, no worries! Just shoot us a note at email@example.com, and we'll get it sorted out for you. 😃