Unsafe system requirements

I had a query regarding my savings account and called the customer services number on the website.<br> The recorded message asks you to type in your card number AND pin.<br> I felt this to be unsafe,especially when all the banks tell you never to enter your pin anywhere.<br> <br> If you don not enter a valid PIN then the system asks you to call back when you can.<br> <br> This seems rather silly on Standard Banks part,the banks are closed and I needed assistance.<br> How am I to trust this system?