Over billing on uncapped fibre package

I have logged a dispute on the 6/02/2019 for being over charged for data usage on my uncapped Fibre line.Not sure how I can be over using data on an uncapped package.... Till today no one has the decency to call me to provide feedback on this issue. I called Telkom again today and was advised that my case is still on pending status and has not yet been attended to. This is being escalated for like the third time and everytime I call, the turn around SLA stipulated is 7 working days... NEWS FLASH - This is going on for a month now and not 7 days.. Not impressed with the service being provided