I know this is a security feature but it is EXTREMELY hard for humans to even read the numbers on the pin codes when you have the scribbles all over them.

It's a simple fix - remove the scribbles and the numbers are readable. The security would still be there - it is would still be much more secure than most banks with the scribbles removed.

Please make the codes readable. I must get them wrong over 50% of the time!

Thanks