Overdue refund

I ordered Vodacom fiber service 9 months ago - to date there hasn`t been an installation of the service, instead I`m debited over R4600 in one go. After spending hours to get this rectified I`m promised a refund on the 25th Apr - more than 2 weeks later I still don`t have my refund. I`ve given up all hope of ever getting my refund and I just don`t have the time to be transferred from person to person and have to explain my story again. The call center staff need serious training - soft skills are very questionable (how does one say to a client - "I don't know what to do"?) and there is very little "service in the moment" being driven. Seems like there is zero accountability for the service experience so no one takes the imitative to see queries to resolution