There are two payment methods available: 1. Cash balance: Pay monthly via your Stacker Market account’s USD balance. Kindly ensure that there are sufficient funds for the monthly purchase amount. 2. Credit/debit card: Pay monthly via credit/debit card. Note that for every purchase via credit card, a surcharge of 3.9% will be charged on top of the purchase amount and transaction fee. Note: The minimum Accumulator amount is USD 50.00.