Bill Dispute

In August 2018 I contacted Telkom to set a bill limit on my account. This was done . However, in February 2019 I noticed my bill was much higher than normal. I again contact them. They confirmed the limit had be removed, and that they'd rectify this error. This month when I received my bill, I again noticed something was amiss. I contact Telkom to dispute the bill as there was an additional amount which confirm my request to set a bill limit was not honoured. When is someone from Telkom gonna come back to me to tell me my bill has been rectified as per my request to the guy I spoke to more than a week ago?