Must I leave FNB

Kindly assist me. I have called and e-mailed fnb. No Feedback and cant find any of my previous calls.<br> <br> Below are the numbers<br> *** <br> ***<br> [Email Removed]<br> <br> <br> I will close my account and move to another bank if i am not assisted.<br> <br> I noticed my account is in debit. Due to an overdraft that i have used.<br> <br> Since i have been with FNB i have never gone over and above what i earn. After calling and investigation this is what they say.<br> <br> I am not sure of dates however before i upgraded to a cheque account i had an old fnb account which they cut up in front of me <br> <br> A few months later money was drawn from that card number....<br> <br> How is this possible????<br> <br> Please assist <br> <br> ***