My entire life is at a standstill because I decided to study with Damelin

I enrolled at Damelin in 2016 through the company I was working for . Unfortunately due to crippling anxiety and depression I was unable to study this resulted in me being unable to further my studies . My employer is now deducting large chunks of money from my salary while I wait of Damelin to refund me atleast a portion of the R28000 I paid to them . I call almost everyday for weeks on end with no reponse or concrete feedback.