Retrenchment claim

I have submitted a claim due to me who was retrenched in August. Nedbank insurance have declined my application two times now as they say i took a voluntarily retrenchment witch was not the case. I have submitted all the required documents aswell as an email from HR stating is was not voluntarily. Verry verry upset with the service from Nedbank insurance. I am not just going to leave it. Have to borrow money to pay my cars to jot get a bad record. But why have this policies in place and pay them EVERY MONTH if they don't protect you? Utterly bad service!