Shocking!

I subscribed to the streaming service at R369 per month. I paid online by credit card for what was supposed to be one month. Then I noticed I was charged 3 months in advance. I complained and was told it was a system error (Very convenient for cash flow) I was made to jump through hoops to get refunded. I decided to leave it as most probably do. Then the service stopped working. I complained again and found out the service was cancelled. Livid, I then demanded the full refund. After a long and torturous wait for the non existent customer service I got confirmation the refund would be credited to my bank account. A month later still no refund. Back to the abysmal customer service. " Sorry, can't see any refund due on the system" I have been trying to get some sense from customer service. They avoid and ignore. This is simply ********. Is the only way to resolve in court as I am ready?