The $100 discount will be applied to your Powershop account in four instalments of $25. To receive the initial $25 discount, you need to join via this page on or before 31 January 2019. You will receive the initial $25 discount on the day you become a Powershop customer, the second instalment on your 90 day anniversary of becoming a Powershop customer, the third instalment on your 180 day anniversary of becoming a Powershop customer, and the final instalment on your 365 day anniversary of becoming a Powershop customer. Each $25 discount is not available in conjunction with any other promotional offers available through Powershop from time to time. You can contact Powershop through www.powershop.com.au or by calling 1800 462 668.