OK guys. I have this customer that won't pay. She called, I did an estimate she says OK. I then ask if she would like a fert program and she says she will get back to me on that. Well, 2 days before the mowing is to start i call all of my customers informing them that mowing will start on X date and if they had any questions to give me a call. I didn't hear from her. I went and mowed the lawn, she was home. About a week later she calls and said that she didn't "confirm" that i was to mow. But she will pay the $45 this time. Well guess what? It has been 30 days. I have already sent two letters and administrative charge invoices. What can I do next? BTW, her account balance in now $75. I have heard of "Theft of Services" and a lien. What would you do? I will NOT just write this off!