Monthly charges are not deducted from credit balance.
Please provide a solution for that.
So that if we give credit to customer without adding payment method, then customer can use the service fully and especially in Asian countries, your problem regarding payment method is solved.
Once the customer is given credit, all his charges can be deducted from there.
Whether it is monthly subscription charge of subaccount
Or monthly subscription charge of WhatsApp
Or conversational charge of WhatsApp
Or any other type of charge, all the charges can be debited from his credit balance.
Currently only conversation charges can be debited from here, apart from this, there is no permission to debit any other type of charge here. They are debited directly from the card.
So instead of card, he should give permission to debit from this.