You only have to be signed up for 30 days to qualify for the giftcard
Offer Terms and Conditions
eGift card offer only available when you sign up online at sumo.com.au. A $50 eGift Card for new electricity customers only. Your electricity must transfer to Sumo (you will receive a notification from us when this is complete) and then remain active for 30 days to be eligible for the eGift card. Your eGift Card will be emailed to you after that time. Offer not available with any other promotion, and not transferable. Offer not redeemable for cash or credit. Offer expires 11.59pm AEST 14 May 2021. This means you must have completed the online sign up by this time. We may change the promotion terms and conditions at our discretion. The promotion may be withdrawn earlier without notice.