On Soundcharts, when you subscribe autonomously on the dashboard, the only payment method is the credit card.
If you're a Dashboard user, please follow the next steps:
Click on your name on the bottom left corner of your screen
Click on the name of your team
Go to the Plan & billing tab
Click on Manage billing & subscription
Click on Payment methods
If you're an API plan user, please follow the next steps:
Go to Developer Portal
Make sure you're signed in
Click on Console
Click on Manage billing
Click on Payment Methods
If you need further assistance, please contact us at help@soundcharts.com or via the chatbot in-app.