Nosa is exploiting their students for money

Hi. I wrote Samtrac in February 2020, upon completing it Nosa failed to communicate with me my results I had to call in June 2020 and the told me I had failed, I asked the call Centre lady to tell me the next date i can rewrite she said she'll call again. Because of the lockdown I thought I'll be writing this year, when I went again this year in Pinetown they told me I cannot rewrite I must start the course again and I must pay R20 000 again on top of the one I paid. Now tell me where am I going to get R20 000 again when just want to rewrite the course, I don't want to do it again.I am very disappointed and dissatisfied at the poor service and lack of communication from Nosa. Please HELP me