If you are trying to onboard using Co-existence, sometimes, Onextel can fail to attach a credit line. You'll see something like the above screenshot in those cases.
This happens because the Credit line is already attached to some other payment method. In this case, you have to head to https://business.facebook.com/latest/settings/whatsapp_account and click on Payment Settings
then, you will see a page like this, follow the steps below
Ideally, in most cases this should work. However, If you see something like
Then here is everything you can do:
A few things to check:
Add another payment method first
Meta usually won't let you remove the only payment method attached to an account.
Add a new card, make it the Default payment method, then try removing the old one.
Check for pending charges
Go to Payment Activity and see if there are any pending, processing, or unpaid transactions.
Even a small unsettled amount can prevent card removal.
Check if the card is being used elsewhere
In Business Manager, the same card can be attached to:
Ad Accounts
WhatsApp Business billing
Other payment accounts
Remove it from those locations first.
Look for active WhatsApp billing
If this payment account is connected to a WhatsApp Business Account that's using conversation-based billing, Meta may require another valid payment method before removal.
Try from Payment Methods page
Instead of the account overview, go to:
Billing & Payments → Payment Methods
Set another card as default and remove the old one from there.
If nothing works
Open a Meta support ticket from Business Manager.
This sometimes happens when Meta's billing system still has an internal association even though the balance shows ₹0.