Charged for a service I did not sign up for

<p> I am on Telkom SmartBroadband Wireless 20 GB Bundle my number ***, the past 2 months I recieved R500 as part of the bundle. I used it without worry as I thought its an added benefit. I then recieved an Invoice from Telkom and I am being charged for the R500 airtime. Invoice no *** has a total due amount of R 896.25 , I normaly pay R399 for my package. I do not know where the R500 airtime comes from and this is a total ******* if Telkom is expecting me to pay for this.</p> <p> </p> <p>If its not a complementary benefit, please remove it from my package. </p> <p>Angry Customer</p> <p>Prince Radebe</p> <p>***</p> <p>Cell: ***</p>