Refer us and be rewarded. It's that simple and only from Ecogenica. Residential Referral Program VIC Residential Customers only. Offer excludes Solar Vic Applicants. Simply tell a family member or friend about your hot water upgrade. Once they get it installed, we will give you a $100 digital gift card! Commercial Referral Program VIC & NSW Commercial Customers only Simply tell another business about your hot water upgrade. Once they get it installed, we will give you a $250 digital gift card!