Access requested
After you request access to a file, the owner gets an email asking them to give you access. As soon as the owner approves your request, you'll get an email confirmation.
Other things you can try
Contact the owner
It may be quicker to send the owner of the file an email or chat message asking them to give you access if you think you shouldn't be seeing this message or you don't receive an email after requesting access.
Switch Google Accounts
If you have more than one Google Account, the account you're currently signed in with might not have access to the file. To switch to another account:
On a computer, open the file using a web browser, like Chrome.
On the "You need permission" page, click Switch accounts.
Sign in with the Google Account that has access to this file.
Still need help?
If this didn't help you, try looking at other answers in the forum.