Overcharged and Double Charged

I app**** for a 10mb ADSL bundle with Telkom in December.<br> <br> With regards to billing, I was charged for the data portion for the December month even tho it hadn't been activated. I had yet to receive login details, which eventually came through in January. I paid the full amount but was credited in the following month February. The amount due in January was R1,591.45. February total was R412.45.<br> <br> I upgraded my line from 10mb to 20mb in mid February which according to the Telkom website is R601.00 per month excluding line rental which is around R170.00. I am being charged a total of R837.72 when it should be around R770.00.<br> <br> To make things better, when I changed my line speed the price increased. So in my March statement I have been credited for the 10mb bundle (which I had paid for) and charged AGAIN for February but at the increased rate. The amount of R412.43 has not been allocated to anything. I am no accountant and I can clearly see that I am being ******. <br> <br> Please look at my account ***. I would like to be charged the correct amount and this be back dated to credit my account for all overcharged amounts. I logged this fault on the 10th of March with no response.<br>