What to do if my employer left a voicemail saying that I need to bring in proof that my SSN is my own and implying they will not mail out my check until I do?
Legally, your employer cannot pay you unless you are eligible to work in the United States, and your SSN is critical to determining that. They cannot employ or pay you unless you show proof of eligibility to work. There is no reason for you not to provide the documentation your employer needs; it is regularly required for employment.