The largest cause of lost subscribers.
WHY PAYMENTS FAIL
Expired cards Insufficient funds Bank declines Card restrictions on recurring transactions Cards replaced or cancelled
That is normal and constant. It is not a customer deciding to leave.
WHAT YOUR SYSTEM SHOULD DO
Retry after a period Notify the customer clearly Provide an easy way to update payment details Suspend access only after a grace period
THE GRACE PERIOD
Ending access on the first failure loses subscribers who would have paid.
A few days with clear notification recovers many.
THE NOTIFICATION
Must be clear and must reach them.
Email plus SMS or WhatsApp, given how many people here do not check email promptly.
WHAT IT SHOULD SAY
That payment failed What to do about it What happens if it is not resolved By when
WHAT TO MONITOR
Failed payments weekly.
Each is a subscriber about to leave, recoverable with a message.