Create Bancontact Source params.
a SourceParams object that can be used to create a Bancontact source
A positive integer in the smallest currency unit representing the amount to charge the customer (e.g., 1099 for a €10.99 payment). The charge amount must be at least €1 or its equivalent in the given currency.
The full name of the account holder.
The URL the customer should be redirected to after the authorization process.
A custom statement descriptor for the payment (optional).
The preferred language of the Bancontact authorization page that the customer is redirected to. Supported values are: en, de, fr, or nl (optional).