Customizing the name of the payment method
By default, during checkout, the PayZen payment module will display : Pay by card.
The label can be edited, for example : Pay by credit card with PayZen
To edit the label, open the Payzen.php file in the following folder : Catalog\language\fr-fr\extension\payment
Then replace Payment by card with the label of your choice :
$_['text_payment_Payzen_title'] = 'Pay by bank card with PayZen';
$_['text_payment_Payzen_multi_title'] = 'Pay by bank card in %s installments with PayZen';