PIN is meant for ATM transaction including cash advances.

You can use either PIN/card to setup for M2U access if you don't have yet.

The First Time Login PIN used for M2U registration is not same as the ATM PIN.

The ATM PIN is used for ATM related transactions including cash advance and M2U registration.

Under M2U registration from ATM, you'll create another PIN required for First Time Login for M2U.

YES. Once you inserted the CC, you'll be prompted to key in the ATM PIN.

Then, scout for M2U Registration menu and generate the First Time Login PIN.

do you have saving account with the bank?
if you do you can just ask the officer to link it for you

for the pin for atm you also need to request from the officer if you need one

Use only either one. Not both.