Change the payment method of an existing order
From NETIM
This tutorial will help you to cancel or modify your payment methods.
Log on Your Account section "Orders" >> "List of orders"
Cancel a payment for a validated order
When you submit an order with one of the following methods of payment check / bank transfer or administrative mandate, you can cancel it :
1. To cancel, click on 
2. The application is taken into account and the button is replaced by 
3. To place an order by choosing a different payment method, click on
