Unfair business practises by MFC/Nedbank

I am paying for my car but I have not been getting statements to monitor my account and the whole week last week I was calling and emailing them asking for a statement and they promise to send but till today I have not received it and now I don't know what to do anymore it seems my request is falling on deaf ears it like they don't care about their customers they are only interested in the money we are paying please help.