i had this problem before, i forgot my pin, tried 3 times, then coz i'm afraid if i try one more time, the machine will block my card, so i went to cimb branch. they told me that your card won't be blocked (kena telan) no matter how many times u key in the wrong pin. it's just that the machine will reject your pin. and yes, you will need to pay rm12 if u wanna reset your pin.