Unfair/incorrect listing by vodacom

I requested a data sim with vodacom in 2020, I cancelled the contract withing the 14 days of utilising it after seeing that the data did not last long enough.

I sent them an email cancelling several times, even sent same later after they handed me over to their lawyers a year later. The sim was only used for that 14 days and not more.

I have emails as proof cancelling same, only to find that they have now listed me on credit bureaux for a 3K bill. How? What data did I use? when? Vodacom is taking advantage and calling them is futile as I'm kept holding sent from one consultant to the other.

I need that listing removed ASAP. where are the transcripts of the usage? when?

Stop bullying!!