Telkom changes R1400 for 9 days of ADSL internet.

I had the deal from Telkom where I paid a bit over R600 for an uncapped 4mb ADSL line and landline where I don't pay for any calls made to Telkom numbers. Extreme slow adsl line speeds over weekends (sometimes as slow as dailup) caused me to be unhappy with Telkom. I decided to cancel my landline and ADSL. On 28 February 2018, I send a cancellation email as I was told by Telkom to give a month notice. I asked for the Service to be ended on 31 March 2018. On the morning of 9th of March 2018, my adsl stopped working, I checked the landline and it was still working. I reported the fault to Telkom and after at least 4 phone calls to Telkom, where they could not assist me, eventually on the 11 th of March, a lady from Telkom phoned and said that the service was cancelled and that is why my ADSL was not working. I said that the service was only supposed to be cancelled at the end of the month and that it must be activated again, but she said that it was cancelled and nothing could be done to activate it again. I had to scramble to get a LTE router and provider and it cost me about R1000 more because I had to get internet in a hurry. My Telkom Bill was fully paid at the end of February 2018 and I was expecting a small bill because Telkom only provided a service for 9 days, but they send me a bill for R1400. I logged a dispute with Telkom, Case no: 227/40480, and phoned them numerous times. They just told me that they will escalate the case and that her supervisor will contact me. Up to now, almost 4 months later, no one from Telkom has ever contacted me to confer about their bill. In the bill they have the audacity to charge me for 2 notification fee's. Nobody notified me of anything! Both notification fee's were dated 9 March 2018. The first one for R 598.50 and then another notification fee for R490.46. I am convinced that they just give out case numbers and that is as far as it goes. Please do not do any deals with Telkom, because they are out to cheat you and their customer service is a joke.