In general I agree with @Anonymous_ .
However, we are in different times and the last couple of years has basically completely overwhelmed the IRS. They have millions of pieces of unopened mail, reduction in workforce, reduced funding, etc.
@L1SA_D your facts are not clear that you are a member of the LLC and entitled to a K-1, I will assume that you are.
My recommendation would be to meet with an attorney and have them draft a simple letter to the LLC managing member explaining the responsibilities of the LLC in filing timely returns and K-1's to the members. Keep in mind that the LLC most likely at this point filed for an extension and the return is technically not due until September 15th. While this will require some $$, this action will most likely get the ball rolling much quicker than attempting to get any results from the IRS. This letter does not have to be anything that is long and complicated. So before you get an attorney involved, make sure you understand if the LLC return is on extension, and if it is, then wait until after September 15th.
*A reminder that posts in a forum such as this do not constitute tax advice.
Also keep in mind the date of replies, as tax law changes.
