Truly pathetic billing practices

I wrote a review on 28 November to complain about credit due to me for over 5 weeks of downtime on my fibre not being passed after 4 months and Vodacom then listing me on ITC for not paying a bill that is not due. They private rep**** to me stating someone would contact me and they never did. The issue is still unresolved and they are still calling me for an outstanding bill. Truly pathetic.

Now, they are sending me invoices on my cell phone account with extra values added to the totals on the VAT column that isn't levied on the line items, further inflating the total payable and they seemingly have no channel to which you can raise a billing query. You can only speak to the staff on the call centre line that don't understand the basic principles of what an invoice is and how it works.

How is this company still in business with this level of incompetence ?