Discovery Health should not put their clients through SSDA for collections because they are useless

I made payment of R5k in error to them on Friday 22nd of February 2020 as I was a previous client of theirs and still had them saved as one if my beneficiaries on my banking profile. I called them to check what I needed to submit in order for the refund to get processed. I submitted all the requested documents on on Wednesday 26 February 2020. I was told that the refund would take 42 working days to be processed. Its way past 42 working days now. Their lines ***/1 only plays the recording, no one is picking up calls and no one is responding to my several follow up mails. Lockdown happened on Thursday 26 March which is a month into my refund request and they were already not responding to my mails even pre-lockdown.