It works 100% but free messages can only be sent at every 0'clock 10 past 20 past half past etc etc i think the programme is reset at every 10 min so this happens if you get reply thats 1 free message to be sent anytime these don't have to wait until the next 10 20 30 these can be sent at 6 min past if that was the time a person without a reply would have wait the exta 4 mins until it was 10 past.The main point people need to understand is don't try to send a message until the time is o'clock 10 pst 20pst half pst 20to 10to these are the onlytimes messages can be sent and cbfsms works 24 hours a day