Do you have a Proximus or Orange contract?
Then you can choose to settle your costs via your mobile phone bill. The balance in your account must first be at €0.00. Be sure to check with your provider whether your subscription allows a link to 4411.
For Proximus customers, more information can be obtained via this page. If you are an Orange customer, you will find more information on this page.
To adjust your payment method, follow these steps:
In the app, tap on “Account”, then under “Account settings” on “Payment method”