Supersonic Fiber Internet - I WANT MY R1814-00 REFUND NOW!!!

I am so disappointed with Supersonic, I started using Supersonic from 1st of June 2022 - the initial agreement was that Supersonic would debit my account each and every month for the amount of R599

My account was not debited, They however sent me an Invoice via email, for the monthly amount. With the amount i should pay, my Payment Ref number, Bank Details and the email address i should send the proof of payment. I followed the payment requirement instructions as per the invoice sent me to, every month - for 4 months at the end of August my account was debited with the amount of R1814, Supersonic told me, the account i was paying is the incorrect Bank account. * Although the account details have been on every months invoice they have sent me * They cannot tell me when i will be refunded Its now almost 2 weeks later - they have not even made contact with me. The day they debited my account - i sent all the proof of payments through to their Client Services, and almost 2 weeks later, no refund and no communication