We currently have a threshold of 300 per account/month that are free of charge. However, if you find yourself going over that limit and would like to add more, we charge a fee of .01 per text message and .02 per picture message. Additional messages can be purchased in blocks of 500. This amounts to $5/month for SMS and $10/month for MMS.
If you wish to add additional messages, please contact your account representative and they will get this taken care of for you.