I have a customer ( 4 1/2 duplexes in same development) who on Aug 8th switched from bi monthly $65 to an annual customer rate of $100 (40 cuts per yer @ $30 per cut = 1,200 / 12). I gave her the invoice for $190 and she said she'd send it out. Today I get to the property handle the yard and I notice there is an envelope stuck to the window. It's a check for $150 and asking that I trim the hedges. This customer was supposed to have paid me by the 15th, for August and I was delivering invoices today and had a reprint of August and Septembers invoice. I knocked on the door but no one was there. So I wrapped up and left the invoice showing her $200 and subtract the $150 showing she still owed $50on that and $200 on the other. I don't even have this lady's phone number in my records. Doh!