I have a customer that is set up for terms of Net 15. Meaning after each mowing - she gets 15 days to have the payment to me. I have mowed her grass 7 times now (She is now about 50 days past due), and no longer am mowing. I put 2 statements in her mailbox saying we are unable to service her lawn until payment is made, Her grass is now about 6-7" high. I havent heard freom her. SHe gave me a whole line of excuses on why she hasnt paid,. and she wont pay via Credit Card either. Any help on what to do? She owes $140. Every time I go by she doesn't answer the door or istn home. LMK steps I need to take.