Money ****** out my account

Been struggling to get a refund from dstv from money they took out of my account from a mistake on their side. First they want to blame me cause you guys took 3x the amount out my bank account after a system upgrade and it pick up and old account and decided to happily take money out for that and when I phone in the first lady put me on hold cause she did not wanted to help me and the phone got cut, second lady she also did not wanted to help give me a sms nr for a new decoder really only the 3 rd time I was helped the lady pick up that the fault is in your side and will refund my money that was 3 weeks ago she told me it will take 24-48 hours then I will have my money refunded but still nothing. After many sms emails and on social media and the online chat I was promise it will be sorted out. Still waiting for someone and still NO refund. I want my money back in my account that you guys stole from me.. think is time to cancel this decoder. Looks to me the people that does the refunds are sleeping or no one is doing their jobs. I WANT MY MONEY BACK THAT YOU STOLE FROM ME. IM FED UP WILL ALL THE STORIES AND EMPTY PROMISES!!!