If you'd like to remove your credit/debit card details from your Mailtrack account:
1) Go to the Account and Settings section of your Mailtrack dashboard.
2) Click Subscription.
3) Click Edit payment method.
4) Click Remove card.
Updated:
If you'd like to remove your credit/debit card details from your Mailtrack account:
1) Go to the Account and Settings section of your Mailtrack dashboard.
2) Click Subscription.
3) Click Edit payment method.
4) Click Remove card.