bad service

I am greatly disappointing at how Discovery Health has dealt one of my claims. I submitted on 29/01/21 and the lady said they needed a different ICD Pen code, it was a mission to even get Lancet to resend but they eventually did. I submitted to Discovery, subsequently spoke to another person on 109/02/21 because I still wasn't paid, they were gong to "find out" what was going on, that amount to nothing. I called again on 24/02/21 about the SAME claim and this lady also promised to look into it but didn't come back to me. I called again on 4/03/21 and the gentleman said oh no I need to submit to *** none of the other people said anything about this. Then today, I spoke to someone else who tells me that actually ANOTHER CODE needs to be changed (this time is is the PCR test code) how is it that none of the other FOUR "competent" consultants missed this?? it has taken more that the 2-3 working days they pride themselves with to settle this claims.. we are now in the March when the claim was submitted end of Jan. This is pathetic