Add card with 100% success using the app provided by Meta
✔️ Step 1: Download Ads Manger application (App can be used on both Android and IOS, Download on Play Store or Appstore)
✔️ Step 2: Log in to the Facebook account that needs ADD CARD to the app
✔️ Step 3: Go to the cog-shaped SETTING page in the lower right corner
✔️ Step 4: Select PAYMENT => Add payment method
✅ After ADD CARD is successful, you can create ads directly at the APP or continue to use your computer to create ads