Appalling service still waiting for my double charged refund

My name is Thandeka Qangule and my GAME account number is :***. On the 25th of March I made a payment through the Game App for my Game account for an amount of R1128 as I wanted to settle my installment. I called RCS to confirm payment made. They requested me to send a whatsapp of the proof of payment to which I did. I received a confirmation sms in the after to confirm and thanks for the payment received. To my surprise on the 26th of March a debit order for R1127.59 went off my account. I again sent a whatsapp along with a prof of both payments to RCS with no response. I sent an email and I received an automated response. On the 27th of March I sent an email again to RCS requesting a refund of the second payment. I again received no response. I then called the call centre and was advised to email their refunds department and payments department. I did that . Did not get a response. I have sent another email this morning and still not received a response. Their service is appalling. I need my money back in order for me to pay my other accounts.