Horrible cutomer service , dodges customer refunds

I signed up for the FLTE service aand made payment on 23 January , I was assured i would receive sim an router within 5 days, Only receive this on 5th February after numerous calls and dropped chats on the whatsapp portal. They assured me that I would be billed pro rata when I enquired as to late delivery (2 weeks). On the 25th February NOT only did this not happened but i was in fact DOUBLE billed. Package being R999 and my account being debited for R1986!!!! Naturally I called them the next day (26th) and was informed that a refund would be processed. Next week I was told I would receiver feedback by Friday. After the 5th call I am still waiting for this refund or even a callback, sms or email from Supersonic to update on the progress or explain what could have gone wrong. I had previously had a Fibre account with this company and was fully aware of the ********** customer service but has honestly expected an improvement by now.