FNB Account Balance Discrepancies.

I have been taken for the run around by my banker and the good people at FNB. My money has been disappearing from my account and they can't seem to find where the issue is. When I call I'm being sent from pillar to post with no solution and the last time they tried to help they just adjusted my balance without any explanation. I can't even tell whether the adjusted amounts are correct and how long this has been going on for. Anyone who reads this, Check your accounts on a daily if you bank with FNB.