Consider six transactions conducted in a given fortnight: Juliette's wage for her job at the supermarket is $600, paid on her bank transaction account (transaction 1); Her scholarship allowance for studying is $150, paid on her bank transaction account (transaction 2); She pays grocery for $250 using her debit card (transaction 3); The dividends on her existing portfolio of Telstra shares amount to $70 and are paid on her transaction account (transaction 4); Juliette receives $350 in her transaction account for selling government bonds back to the government (transaction 5) she had bought in the past at $300; She buys a video game chair worth $920 with her credit card (transaction 6). Juliette is the customer of CBA, an Australian bank, in which she holds a bank transaction acount and from which she got a credit Card.