How to top up your balance
To top up your balance, go to the Credit section and enter the deposit amount. Then follow the prompts. 
The payment history is displayed at the bottom of the screen. Incomplete payments have the status «PROCESS».
To find out the details of the payment, click on the menu next to the payment and go to the «View details» section.
If you don't want to track your account status manually, we recommend enabling the Low Balance reminders and Payment Status notifications.
Also, we recommend enabling Auto Payment to prevent unexpected halt of messaging.