I also got a message from Apple after 38 days to completed investigation process. Only things is that I uploaded 2 apps in which only one app is reviewed and rejected because of less functionality and design(now I am working on this app with more features and graphics) but another app which is developed with fully functionality and this is not review by Apple at that time. Only one app is reviewed and rejected. But most important things is that Apple responded with positively about investigation of account and I really thanks to Apple for your positive response. we just have to be patient and wait. Don’t delete your app when your account under investigation. Don’t send any appeal or mail to Apple. I only waiting for my second app which will be review by Apple as soon as possible.(I didn’t take any action of those apps when my account was under investigation)

Hi, I have similar problem, I uploaded app which i build in flutter but i got message from apple to investigate your account. How long i wait for that. if you got any message from apple then reply here.