It seems to be automatically sending messages however there are no messages in my outbox nor have i sent any since i don't have any credit currently. As i am out of credit, i know that this is happening because i keep getting a message from optus saying "an sms you tried to send or received has failed as you are out of credit for that message type". It definitely is also not a message i am trying to receive as both normal texts and multimedia texts are being received to my phone. Anyone have any ideas on how to fix this?