Im a subcontractor working on a large commercial project. We were slightly behind on one of our scopes of work-drywall. The contractor hired in supplemental labor without any agreement from us. Contract calls for certified mail and 48 hours notice to remedy the situation. We were given a bill for $58,000 for the work which is three times the proper rate. The contractor is contending he has not received payment for the draw submitted on 12/9/19. This is likely to place additional pressure on us to concede to the bill. What are my rights and how do i find out if the client has been paid for that draw?