What's new with Shake Rewards? Boost Support Follow Enjoy up to 10% cashback every time you Top Up your mobile credit. Simply shake your phone when you see the red banner below. Topping up has never been this rewarding! Limited time offer from 1st June-31st July 2017. So, hurry and Top up now! Related articles How do I send Boost credits to a friend? What's new with Shake Rewards? How do I become a partner of Boost? How do I get free Boost Credits by inviting my friends to Boost? How do I redeem my vouchers? Comments 0 comments Please sign in to leave a comment.