If you are under 18 and not eligible for the $50 cashback, I saw this offer on their website too - $30 Cashback and bonus portable charger when you sign up to a flex youth savings account (for ages 13-17). First 300 customers only so you may want to get in quick or contact them beforehand to see how many are left.
Effective Date 31/10/18. The Flex Account is available for 13-17 years of age.
*The $30 bonus and portable charger offer is available for Flex Accounts opened between 31/10/18 to 31/1/19 and available to the first 300 new Members who apply during the campaign dates. $30 will be deposited within a month of the Flex Account opening. Offer only available for new Members who open a Flex Account. Offer not available in conjunction with any other offer and can be withdrawn at any time.
Weird Flex but ok