Telkom a bunch of bullies

I am so angry and ****ed with Telkom. They are a bunch of *********, *****ing money from their customers and deciding to debit however amount, whenever they want. I have been with Telkom for almost 5 years now, and in that 5 years I only defaulted on payment once which was this year in August because I was going through a rough patch that month. I spoke to Telkom and we had an arrangement that they will double debit me the following month, which I was fine with. On the 20th Sep I got debited R391,10 which was subscription and again on the 23rd Sep I got debited R568 which was August's subscription. I was then under the assumption that all is well. Fast forward to last month Telkom decided not to debit me when they were supposed to and this month I get an invoice saying that I am on arrears and I need to pay R800 which is absurd. I then called the Telkom line enquiring of which I then spoke to Thandiwe who told me that i need to pay or I will be suspended and she says I should have transferred October's payment as their system decided not to debit. I was not told of this prior and I had been calling Telkom numerous times,and not once was I told. I called on the 14th October, 28th Sep, 27th Sep and even on the 21st Sep not once did anyone tell me of this. I then asked to speak to a Team Leader by the name of Khensani who also made it seem like it's my fault that Telkom did not debit me last month when they were supposed to. I will not pay that R800 as I was never told and it's not my fault that Telkom system is built that way. Whilst talking to the Team leader my call got cut and I tried to call again and now I am struggling to get through. I work hard for my money and I will not be bul**** by Telkom to pay exorbitant amounts when they did not do what they were supposed to do. Like I said I've been with them for almost 4-5 years now and not once have I ever defaulted now they treat me like trash. My last contract is comi g to an end in July 2022 and I will never renew with them. They can go ahead and disconnect my services I don't care and they can take me to court, but one thing I will never do is pay that R800. Sies on Telkom bullying one of their loyal customers and treating me like trash.