You can Check balance either from the API or from the Panel.
Here is the API from the same: https://control.jetext.com/api/balance.php?authkey=YourAuthKey&type=1
type=1 for Promotional route's balance
type=4 for Transactional route's balance
Login to the panel.
In the send SMS section, look at the top bar and you'll be able to see the current number of SMS credits available in your account.
Also, you can see all the previous Transactions in Transaction Log.
You can click on the top left corner of the panel at your initials
In the drop-down you will see the option to see your Transaction Log.
Balance for SendOTP
You can check the balance of your sendOTP directly on the Jetext panel.