What to do if you have filed a mechanics lien on a property due to non-payment and still no action?

I'm a material supplier in Florida, who supplied materials to a jobsite in Forsyte, Georgia. Our payment terms were COD, the subcontractor wrote a bad check due to not being paid by the general contractor. After notices and multiple failed attempts to reach the general contractor I filed the lien. The general contractor called and asked if he wired the money to us if we would have the lien released. He has still not done so and I just don't know what my next steps are. Can you please advise?