You can add one of the following text message packages to your account to avoid charges of $.20 per sent/received text message.

(message amount includes sent/received) 

250 messages                                   $5 a month

500 messages+unlimited Mobile to Mobile     $10 a month

1500 messages+unlimited Mobile to Mobile    $15 a month

5000 messages+unlimited Mobile to Mobile    $20 a month

*overage is $.10 per sent/received message