money being debited from my account

<p>i have a problem with Nedbank last month money was debited from my account, and when i did a query and I was told that i did an online purchase which i know nothing about. i was told to fill in a form and send it back which i did but till today i havent had any response, yesterday the same thing happend, i called but i was told to fill in the same forms. at the branch they couldnt even assist me. i have lost about R6000 but no action is being taken.</p>