I am trying to post a job but am getting the message above the "post" button that says:
Note: This job can't be posted due to an issue with your account. Please contact Customer Support. Save your post as a draft, and you can post it once the issue is resolved.
"Contact Customer Support" takes me to the help page, which in turn points me here...
How do I resolve this?
It looks like there are issues with the client-company you are trying to post a job for. Please, ask the company owner to resolve the issue with the account.