Incorrect Billing

According to the latest statement received dated 3/5/3015 I owe R1404.90 on my previous statement which was added to this statement bringing the total to R2 598.60. <br> <br> However, according to my bank records, the amount of R1404.90 WAS ALREADY paid (debited from my account) on 4 May 2015.<br> <br> Thus I am not liable to pay the amount of R1404.90 again.<br> <br> Could Vodacom kindly asssit in resolving this before my debit order due date? <br> <br> Thanks<br> <br> Xander Flemming