Discovery Vitality False Reward for Active Lifestyle

Discovery Vitality Accelerated Mobile App rewards do not pay. I went to a I-store to retrieve 4 diamond rewards using the Discovery Mobile Accelerator App. To my surprise it didn't work, continually telling me to try again every time I confirmed I wanted the reward. This while standing in front of checkout counter to pay for my selected reward on offer by Discovery Vitality. The message kept on reading *Unable to load - An error occurred while loading this screen. Please try again* When I phoned the contact center it took 3 tries in excess of 10 min ring time before I got a answer. I was then informed that the reward was not valid even though it was still active on the app. I was told that the Discover Servers had issues and were not updating and I must choose something else before my Diamond rewards were going to expire. The 1st expiring on the day I wanted to retrieve the reward for a Christmas gift. In the Vitality App store there was only a florist reward and a travel reward available. I was told by the agent that all other rewards had expired. Even though the reward I selected was still active on the Vitality App. I had to select a travel reward, that I really didn't want so as to not lose the reward diamonds I had so diligently got active to qualify for. This leaves me with the though of why is Discovery really offering items they don't want honor while being actively available on the App? that when one wants to retrieve the reward Discovery cannot be trusted to honor the reward. This experience makes me wonder if the behavior by Discovery Vitality is promoting a active lifestyle or frustrating members to retaliate and wonder why they are being overly active to qualify for the rewards. When Discovery Vitality doesn't honor the reward then why change the behavior from the normal active lifestyle and go through all the schlep of actually registering activity. Very Disappointed and disgruntled Discovery Member.