Data usage error from Telkom

I have a data package were I get 10Gig data throughout the day, and then uncapped at night time. (Between 12:00 at night to 06:00 in the morning)<br> <br> When I was downloading data after 12:00 at night and data was deducted from my 10Gig cap.<br> <br> No one at Telkom is even willing to assist me......they say they don't know what to do....so if they don't know, what should I do ?<br>