Step 1: go to https://business.facebook.com/settings/whatsapp-business-accounts/. This will redirect you to your WhatsApp cloud account panel.
Step 2: Now click on the Setting tab.
Step 3: Now click on the payment setting button.
Step 4: After that, you will be redirected to below screen. Here click on “Add payment method” to add debit/credit details.
Step 5: Now It will ask to add your location and currency-related information. Enter your details and then click on “Next”. Then it will ask you for further information.
Step 6: Once you add all your card details correctly. Your card will be added to the
WhatsApp Cloud account panel.
