Bad service, frustrated and angry

Good day Im so dissapointed and angry with how the school runs Administration, i registered for a course , paid for first semester, due to covid-19 lockdowns couldn't continue as there was no correspondence from Mancosa on how I should continue with my academic progress, i struggled making calls where no one will give proper solutions, instead i continuously receive plenty of messages that i didn't pay whereas first payment was covered but i didn't have proof of with as it was the employer. I tried numerous occasions to find out after lockdown level 2 to how can i be allowed to write examination, i didnt get any concrete response which left me frustrated more, the only thing you kept you mastered was sending messages about payments.I feel that everything is not fair to me, the last time i phoned i spoke to a rude agent who just told me that i must not make any excuse of covid situation other students managed to write examination "how rude"!!! So i should have cancelled, continued to say i should have cancelled instead. I was a new student hoping to improve myself with the institution academically but little did I know that, im going to gain stress and depression from the institution operations. I have since been waiting for the contract they said i signed which i did not but the harrassment of requesting payment from me continues. I wholeheartedly wanted to achieve my course with Mancosa but the institution failed me.