WHMCS offers you the option of a large number of different payment methods, but in our opinion WHMCS has unfortunately forgotten one important feature in this context. They may indeed offer many payment options but there is no way, for example, of limiting local payment methods to a specific group of customers. Thus, for example, an Australian customer may select a payment method which actually only exists for European customers.
This is exactly where our Gateway Limiter proves its worth. From the module you can select, for each gateway active in WHMCS, the individual payment methods which are to be made available to specific groups of customers. In this way you can limit payment methods to customers in certain countries, and you can even choose to stipulate that the customer must have paid a minimum of X invoices > €0.00 before (s)he may use the respective payment method.