Poor service and charging service fee while they not debiting in my account

Telkom is the worse since the start of my new contract 2021 they been not debiting in my Fnb account when I I did my upgrade I asked their agent to update my account details she said she did , so before end of the month All I along coz they were not debiting All I did was pay online coz they were not debiting I have been calling their customer service with no luck.every month they charging me rejection fee from the start of my contract till this day I ask them why with no help from their agents logged so many queries with no help…their agents are the worse they will put you on hold while babies are crying on the back ground hang up .this is my last contract with them you cannot charge me service fee from 2021 till now it’s insane .don’t wanna see my self with telkom