Payment for cancelled service???

I am extremely frustrated with Discovery and their *********** staff!!!

I cancelled my medical aid with Discovery on the 1st of November 2018 after paying for the month of November. I then called Discovery on the 14th of November 2018 and the consultant confirmed that I will not pay any premiums at the end of November 2018. Yet Discovery attempted debiting my account for a cancelled service. The only payment that the consultant said i will be responsible for is R1400 and that's if I use up my savings, which I did so thats all I will pay for !!!

The manager contacts me now saying her agent misled me and was wrong after hearing the recording and yet she still wants me to pay. I will not pay as I confirmed this on the 14th of November 2018.

Can a competent Manager contact me from Discovery and have this resolved at once???

And if you dare to blacklist me for this, I will Sue you!!!