Yeah, It's still available on the Sexfriends Menu, it pop up once in a banner but i completed the 3000 levels several times the when I came back to Hentai Heroes, the banner didn't pop up and I can't claim Mizuki
I have the same email from both platforms and I even tried forging several times, logging out and logging out from both platforms it's been 4 days now and I can't get the reward...