I have been trying to change my account's email address from my current email to EMAIL 2.
I keep getting the same error: "EMAIL 2 is in use." To verify this, I created a new Dropbox account with EMAIL 2, and it worked. So, EMAIL 2 is indeed NOT in use. Strange. I have since deleted the new account, but it takes 7 days to release the email.
I need to open a new Dropbox Business account with my current email, and I need to do it urgently. So I tried to change the current email to EMAIL 3, and now I keep getting the error "Too many attempts. Please try later".
Tech support is so slow to respond and usually has the same message: please wait.
Hopefully, there is a workaround.