In order to add the ewallet amount:
Go to the "Clients".
Click on the "Client History".
3. Click on "Ewallet".
4. Click on the "Add", in order to add the ewallet amount.
5. Enter the amount and select "credit" to add it to your ewallet and Click on "Save".
In order to delete the ewallet amount:
To make the ewallet amount 0, simply click the "Add" button.
Enter the amount, select the type as "Debit" and click on save.