When you purchase Premium Services, you agree that we may store your payment information and that we may use that payment information to charge the applicable fees for the Premium Services (including, without limitation, periodic subscription fees for premium accounts) as they become due plus all related taxes, and to reimburse us for all collection costs and interest for any overdue amounts. Your obligation to pay fees continues through the end of the subscription period during which you cancel your subscription and are non-refundable.