I WANT MY REFUND THAT IS DUE TO ME

Hello I made a payment of R399 into supersonic's account on the 30th of July 2021. But they advised I should have paid Vumatel which I then did, but I have been requesting for my refund fo the amount that I paid to Supersonic and till date I have not received any news.Whenever I call they say the billing team only works Thursday and Tuesdays , and when I do call on those days they say they have escalated my request and someone will contact me. No one veer calls !!! This is becoming a nightmare to get back my money from you guys. No wants to help , all i want is my money. Tomorrow is Thursday and should I call the billing team tomorrow , they will say that I must wait again till Tuesday.Ever since I have joined Supersonic all I have has is just problems upon problems ,every month it is just issues.I am really not happy with the type of service I am receiving, you guys have no sense of urgency or sympathy for your clients.