NEDBANK REFUSING TO REVERSE MY DEBIT ORDER!!

On the 28/01/2016 i went 2 the Nedbank branch in Port Shepstone & spoke 2 a consultant about a personal loan which was approved. She advised me dat my 1st installment will go through on the 29/02/2016 as I only get paid on the very last day of the month and which sometimes my salary only reflects the next day. Then i received an SMS from Nedbank saying that since its a leap year my account would either be debited on the 26th & i should confirm a later date if i want. So i phoned the Call Centre and spoke to a lady about switching my debit order dates 2 the 1st of every month as my salary would already be reflecting into my account. My debit order went off on the 29/02/2016 and on the 01/03/2016 which means i was debited twice. When i called the call centre today,the consultant advised that my account would be in arrears as i havent made a payment for March,which is wrong since i asked the lady previously for my debit orders 2 go through at the 1st of every month. He did not understand dis & wen i asked 2 speak 2 his manager,he wasn't available. Long story short, I just want my refund which is owed to me as my debit order for March is supposed to be due on 01/04/2016&arrears wavered