My client**Edited for community guidelines**is locked out of his UpWork account because he has lost access to the email he signed up with.
The email he used was some sort of temporary email, or from salesforce. And he lost access to that salesforce account.
This is the contract between him and me: https://www.upwork.com/ab/f/contracts/24118875
Is there any way we can help him get access to his UpWork account?
You can't help a client or anybody else regain access to their Upwork account. (Upwork won't talk to you about somebody ELSE'S account.)
You can, however, offer them some tips about how THEY can regain access.
You can suggest that they come to the Forum, where people will give them all the help that they need: