To check your account balance, simply pres *777# send on your Firefly phone. If you have a glowPhone, add *777# as a contact named "Balance" so you will have it when needed.
You can also go to www.fireflymobile.com and click on Login in the upper right corner of the screen. When you login, your account information page is displayed and you will be able to check on your account(s). If you have more than one account simply click on the account you are interested in, and it will appear in the Usage and Plan Information section of the screen and display the account balance information.
If you are already logged in, click on My Account in the upper right corner of the screen.