Partner Refuses to Provide K-1

Things went south with my business partner (we ran a restaurant under a LLC) and I have essentially "quit" since March 2023.  I have been following-up with him since March for the K-1, because I am still listed as a partner, and want to file my personal taxes, but after a few times of providing estimated dates, he now completely ignores my emails.  I know taxes are due in CA next month, but I have no idea what else I can do.  Someone suggested me using the 2021 K-1 to file for now, and then amend if I ever get my 2022 K-1.  Is that correct?  Is there anything else I can do to put pressure on my business partner?