No responses, no feedback, bad service

I have enrolled for my Mcom with Mancosa last year, my supervisor was changed in the process after I got approvals I had to restart the approval process again which means time is also moving, I finally submitted my ethical clearance and received it back to rectify which was on the 14th of November 2022,I rectified and send it back on the 24th of November 2022, I followed up with no response, January came I called several times and sent more than 4 emails still no response, then I was told my research coordinator was on leave, very sad that when one is on leave no one can assist i waited until she came back only to be responded back with the same ethical clearance that I submitted first,nothing has been done to my second resubmission, I immediately notified my coordinator, and as usual no response this is now the 8th day, my ethical clearance took more than 6 weeks only for me to get the same one back, I send emails and made several calls and guess what as usual and I'm being told my coordinator is working from home, my submission due date is even coming to an end, I'm also going on maternity leave with no response, exhaustion,frustration and regrets of registering with this institution, my employer is also following up with me I font even know whst to tell them because I also don't know, I would not recommend anyone to do their MBA or Mcom here