WooCommerce Paytrail: One Contract. One partner. All payment methods. Accept credit card or bank payments with Paytrail (formerly Suomen Verkkomaksut). Paytrail allows you to offer each customer their preferred payment method. Their service contains online banking buttons to all Finnish banks, a card payment option, invoice option, and the all-new Paytrail account. Stop losing sales because customers cannot select their payment method of choice!