DStv over charge and no refund!

I was overcharged on my account in October last year. After hours on the phone and several attempts wasting my time, despite promised escalated attention nothing happened. In desperation in February I wrote a report on hellopeter. This precipitated a prompt response and three calls from a gentleman that seemed very helpful, still nothing even after further reporting to their help line. The amount is a over a R1000. The time it has cost to resolve it is not worth the money but its the principle. It seems DStv has financial difficulty and trying to save where they can. If I had fibre I will leave them, furthermore I have more than one account and its a slap in the face. I will haul them into court despite the cost if it is not resolved promptly.