I guess the TL;DR is as such:
I completed all the Frog Mei-related quests on Twitch. I connected my Battle.Net account, and through a series of back and forth tickets where one site said it was connected but the other wasn’t, I got both sites to agree that yes, they are both connected and working and that Frog Mei is “In my Inventory”.
I still don’t have Frog Mei.
I just want my Frog Mei.
If there is a way for me to include screenshots from both Twitch’s Drops saying that I claimed it and from Overwatch where it says I DON’T have Frog Mei, I would love to show.