Worse service ever..

Hi I have a complaint about telkom..I have been over charged from September 2019..and when I contacted them now ... they responded saying that the bill is high due to a late payment and a disconnection fee..my service's was disconnected in October..so the reconnection fee was supposed to be for November..however it was billed onto my December fee..which I refuse to pay cause the fault is on there side and not mine..they service is gone from bad to worse..I am not happy with telkom's service any more.