How do I get my installment payment balance? Amway Support 01 January 2019 01:07 Updated For payment installment balance queries, please call our Amway Contact Centre. Australia: 1800 45 46 47 and press Option 4 (Finance) New Zealand: 0800 611 611 and press Option 4 (Finance) Related articles Who do I contact with payment installment queries? Can I return Amway products that I have purchased? Why can't I log on to the Amway website? How do I change my personal and bank details? Where can I find payment installment forms?