How to add one-off account top-up credit purchases.
If your account balance hits 0, you will be unable to send additional messages. Your current account balance is visible on your Account Settings > Plan page.
To add account credit:
1. In Sakari, go to Account Settings > Plan
2. Click the red "Top Up" button
3. Select the the desired additional credit amount, and click "Purchase." Your card on file will be processed, and the credits will appear in generally under a minute.