Bad treatment from Toyota

Bought a brand new Avanza for business at Durban Toyota in April. By September it broke down and was towed to Toyota Queenstown and I was told it could take months to find its parts. I lost business and my employees went hungry. The installment and insurance still needed to be paid. Toyota was not concerned with any of this. The car has now been fixed earlier than they had stated but now Toyota's Finance department has not paid out the warranty claim to the dealership that fixed it. So I must now continue to suffer because of their general lack of empathy and a lack of concern for their customers? The treatment I got from them so far has been pathetic to put it lightly.