I sat down with my Ambassador yesterday for quite a while and talked through a lot of the issues I've been seeing with my SG account this year (most of this was follow-up from a conversation we had Tuesday on the same subject and what she'd since learned from corporate). For those of us who are having problems seeing accurate information on our online accounts the past few weeks: There have been bugs related to some of their system upgrades that are causing some of the systems to not communicate correctly with each other. There are some fixes being uploaded tomorrow, and more coming in the next week or two. One of the bugs has been the unexpected flip-flopping of accounts between earning airline miles and earning credits toward free nights.
My ambassador was able to have my missing stays manually loaded to my profile/account. I logged in to show her they still aren't showing nights credited toward status tier renewal and she was going to check further into that, but she also showed me on the SG system where she sees them as being credited.
So, per our conversation...if you have concerns, reach out to your Ambassador (or the one you work with most frequently), they're definitely there to help out. I'm fortunate that mine is fantastic and really goes above & beyond in her efforts to help with just about anything related to Omni & Select Guest.