Website Defaulted to Preferred HealthyFood partner

In january I activated the woolworths partner for healthy foods, I then got a woolworths card, and wanted to link it to my vitality profile. Today When I logged in, I saw that it defaulted me to Pick and Pay as a Preferred HealthyFood partner. I never selected PNP, and now it says \You can only change a preferred partner once every 12 months. Juan Korb activated the HealthyFood benefit and chose Pick n Pay as your preferred partner on 19 January 2015. You will only be able to change your preferred partner on 20 January 2016". So for the next year I can not get rewards for a fault on their website that defaulted the selected partner."""