Vodacom service quality

I have had contracts with Vodacom for the last 12 years and I have never been this disappointed as I am today. If I had issues it normally got resolved but this is month 3 and still nothing.

I did an upgrade 3 months ago on both contracts. We gad to settle our handsets, which I did. I send proof of payment to the email address supp****.

Month 1 one of my contacts didn't get the data as per the plan and I was billed for the previous handset. I called to complain. Month 2 we got the data and was billed correctly but no credit on the incorrect billing from the previous month. Month 3 we get billed for the previous handsets again but this time x2 (so for the month they didn't bill as well) Once again a query was logged. Still nothing was sorted . No credits. Still being billed i correctly.

It is frustrating not dealing with 1 person. Having an email address to the person handling my query. If I try to follow up I have to do a verification everytime. I have to explain the whole story over. Another query gets locked because it is a new agent that has to start all over. And still nothing is resolved. Vodacom just keeps on debiting incorrectly and no credits. Worst service ever.