MFC DIFFERENT INTEREST RATES FOR DIFFERENT PEOPLE.

I'm gutted about the service, no answers I received from this financial institution. I asked this company why I, as a pensioner must pay, almost 2% above the prime lending rate for my vehicle finance. Their excuse is that my account is under debt review. This excuse is so far away from the truth that it's a joke. I'm still waiting on the documents showing that my account is under debt review. One fact that this institution forgets is that our constitution makes it clear about **************. I will appreciate it so much if anybody out there can give me a factual correct answer, why certain members of society must pay higher interest rates than others. I thank you in advance for your response.