Pathetic customer service

I cannot get any joy for my vehicles registration papers. I settled 2 vehicles at the same time and requested for the original papers. One is in my name and one in the wives. We received a delivery and when it was opened it was for one vehicle, we kept requesting for the other vehicle and wesbank keeps saying that it was sent and signed for. They are not able to provide proof that both vehicles documents were sent. Now the are expecting me to pay R500 to request new documents. Its pathetic