just got this so might explain it.
Sky Rewards channel unlocks - we’re working on a fix!
We’re aware that some Sky customers are experiencing issues with the Sky Rewards channel unlock not working on the new Sky Box.
We’re very sorry if you have been affected, and we are working on fixing this issue right now. We anticipate this issue will be resolved soon and will contact you when it is fixed.
To apologise, and to thank you for your patience we are giving everyone with a new Sky Box an extra two weeks of Sky Rewards to enjoy. So, instead of the usual 2 weeks, you’ll enjoy a whole month of viewing of your unlocked channel (starting from when the issue is resolved).
Again, thank you for your patience. We’ll be in touch when this issue is resolved.