NOT PROVIDING ME WITH MY REFUND

I cancelled a mobile contract with Telkom within 2 days of signing up. When I asked about my refund as they were very quick to deduct the first month's subscription however when I asked about my refund, I was told 21 working days. It's the 27 June 2019 today and no sign of my refund yet. When I phone the sales department, I am conveniently told that the system is down and that I must phone again 2-3 hours. I do not have 2-3 hours as I have a work to do. They are very quick to take my money but cannot provide me with any answers as to why they are not giving me back my money. I should never have gotten involved with Telkom in the first place.