Incorrect Backer Keys received

I’ve had the Steam keys come thorough now (which is awesome), but the keys that I’ve received have either got the wrong wording on Steam, or are the wrong keys.

The Email specifically refers to my Backer Tier as Master (which it should be), but adding a key to my Steam account has only registered it as a Boundless Cheiftain edition.

Is it possible this has happened because I initially backed as Chieftain, and then upgraded to Master later?

If you need screenshots of stuff, I can provide them. Thanks.