Nature's Calling Event Rewards disappeared from inventory

I've also got this bug, I'm able to complete the quests but unable to redeem any rewards from the Natures calling event, it states I need internet connection to redeem the rewards, I've checked my Wi-Fi and it is connected as I can access the gallery. I haven't noticed items disappearing as I haven't been able to redeem any of the items yet! Hope this gets fixed soon as the event is nearly over and I would be gutted if I missed out on the rewards!