To pay Facebook Ads using GCash, follow these steps:
STEP 1: Open a web browser and visit Facebook Business Suite
STEP 2: Click More Tools
STEP 3 Click Billing
STEP 4: Click Payment Settings
STEP 5: Click Add Money
STEP 6: Click Payment Settings
Step 7: Click Add Money on your Facebook Payment Settings
Step 8: Select GCash as your payment option
Step 9: Enter the amount and click Review Payment
Step 10: Are you sure you got the amount right? If yes, click Make Payment
Step 11: You will be directed to GCash page / box. Enter your GCash number and click Next
Step 12: Enter the authentication code sent to your registered mobile number and click Submit Code
Step 13: Enter your GCash MPIN and click Next
Step 14: Are you really sure the amount is correct? If yes, click Confirm and Pay
Step 15: Receive a confirmation payment is submitted
Step 16: You will be redirected back to your Facebook Payment Settings