Westbank worst bank ever

The worst bank ever... They keep one on hold forever, they promise to call back and never, they just don't care to listen. If I could give them a zero star I would, even a minus 5 star. We paid up early our car about 8 or 9yrs ago in "Full" We now need to get the Natis number to change ownership. They email us to say we have not paid and our account is in arrears they cannot send the Natis number till we pay up the arrears. This is daylight *******, a way to ****** money. We actually had interest returned to us for paying up early and now they say we are in arrears!!! This is bull! We have emailed and the guy just says call customer service. We "Can't get through" - they are of "No" help! Please would someone at Watbank who has some sort of idea what's happening there get in touch with us!!!! Urgently. If we were in arrears why did we not get notified???? No one called or email, nothing! We paid up early in full. This is ******ion. I will never ever use Westbank for anything ever! Please get back to us so we can end this now.