Cannot set pin for credit card

Though credit cards are being marketed aggressively, some credit card holders find that they cannot use the credit card
For one bank, the domain investor received a credit card, she was told that the pin is set using a machine
Despite wasting a lot of time, she was not able to set the PIN on the machine.
She was then told to use internet banking, and even that did not work, so the credit card has not been used.