Insider key says it has already been used

Games Halo: The Master Chief Collection
1

My insider key for Halo 3 says it has already been used then when I query the account its been used by, it’s my account. How can I get a working one?

2

Halo 3 or Halo 3: ODST? If it’s the one for Halo 3 that’s because the flight ended a while ago and with it all keys were revoked. That’s standard procedure for all flights so it’s nothing to be concerned about.
If it’s for ODST that’s a different issue since that flight only ends on the 31st.

3

I may have made the mistake in thinking that since I was in the Halo 3 flight I’d be invited to the ODST flight. Dang, I was just not sent the invite lol.