Increasing credit to user

Hello everyone!

I’m from Brazil, and I use playsms with asterisk + chan_dongle with a modified openvox gateway.

My problem is, sometimes the credit of the users are increased, even if the system sent the sms correctly. The playsms have some algoritm to increase the credit of the user, if some message is not sent?

This behavior occurs not always, but sometimes…

Could you help me?