Bank SA is a division of Westpac Banking Corporation.
A Customer Access Number is what you will use to login to your Internet banking account with Bank SA. If you are unsure of your customer access number. If you are unsure of what your customer access number is, you can access steps on how to retrieve it here.
To activate your BankSA card, you will firstly need to register for online banking here. Once you have an account, log into your Internet banking account and follow the prompts on the screen to activate your card.