Supersonic - Not so “Super” after all!

Got billed R1045.00 instead of my normal R650.00 per month. Accounts department cannot give me an explanation as to why. Gave me a reference number to follow up with. Still no response almost a week later. Also been informed that my line has been upgraded a month ago. Still running at 10mbps but paying for 20mbps. Must be some of the worst customer service I have ever experienced. They are just not interested in the customer service.