Good interest rate, that is ALL

I have 2 vehicles financed with Wesbank. Over the past 3 years, I have paid extra on my loan and never been a day late with payments. Applying for new vehicle finance with them has been a hair-pulling experience. The bank does not distinguish an existing customer from a new one, and treats them just like a number. No personal touch, no sense of urgency. Everyone I speak to at the bank is like a robot reciting a script, not able to take initiative to help expedite the process. Because of this, I have missed a transport window to transport my vehicle across the country as needed. The bank continue to drag their feet email after email. If it wasn't the great interest rate (which has much more to do with me than with the bank), I would not be giving them any more business!