My problem that I am seeing in a nut shell:
http://mybroadband.co.za/vb/showthread.php?p=16016306
http://mybroadband.co.za/vb/showthread.php?p=16024122
http://mybroadband.co.za/vb/showthread.php?p=16032140
What happens if you switch back to your regular account, or use a backup ISP?