Yes mine showed this but when I clicked on it didn't work and prompted me to contact Oculus Support...
I have figured it out anyway,
I had to open my Oculus app on my phone and go to purchases, scroll down to Star Trek and click on it, then find the DLC and click purchase, which was £0.00
I then had to connect the app to my headset and plug in the link cable to my pc, then open Oculus Client, went to my library and Star Trek was showing an update which was the DLC 🙂
Hope this helps others...