protected function _mapToPaymentMethod($variant)
    {
        if (is_null($this->_paymentMethodMap)) {
            //@todo abstract this away to some config?
            $this->_paymentMethodMap = array(
                'sepadirectdebit' => 'adyen_sepa'
            );


            $ccTypes = Mage::helper('adyen')->getCcTypes();
            $ccTypes = array_keys(array_change_key_case($ccTypes, CASE_LOWER));
            foreach ($ccTypes as $ccType) {
                $this->_paymentMethodMap[$ccType] = 'adyen_cc';
            }
        }

        return isset($this->_paymentMethodMap[$variant]) ? $this->_paymentMethodMap[$variant] : $variant;
    }