Reap off

I have just experienced a bad service from soshanguve cash crusaders at plaza .the story starts here i was there on the 19 February 2019 i took my fridge to soshanguve for a loan they affored me 3000 i said no can i only get 1500 so that what happend .to cut the long story short when i went back to them on the 19 march 2019 i told them i dont have the money yet they said it ok but they will add interest on it so finally on the 10 of april 2019 i went back with double thier interest i was told they sold my fridge i ask for the maneger they went back and fourth they all manegers even the person who offered me 3000 was not even there i feel one of them is the one who bailed out that fridge .please assist because that fridge