When trying to redeem a gift card, you might see that some points have been listed as "Unavailable".
Fig 1. 50 unavailable points
This comes about when the relevant campaign has insufficient credits to finance the points that you have. In the above image, there are 50 unavailable points (US$0.5).
In the campaign where the points come from, you can see that it is out of credits in the below image.
Fig 2. The "Compliance & Ethics Training" campaign only has US$0.2 credits remaining
The US$0.2 credits is insufficient to finance the 50 points that you have. Therefore, the 50 points have been marked as "Unavailable".
What can I do?
You can contact the admins of your Campaign to top up additional credits. This help article might be of help in advising your admins about how to proceed with credit top ups.
The admins of your campaign would typically be the person that invited you to join the campaign. They should also be in active communication with you about your challenge claims. When in doubt, you can also ask for your admins in your internal company communication tools.