We have the following notice on "every" piece of paper our customer receive from us. (Estimates, invoices, late notices, statements and newsletters.)In Red ink on the bottom. "Please remember all lawn service companies programs continue year to year, like your utility services or telephone until you cancel them. A note or telephone call is sufficient. Thank You ***Further, your per application costs are based on completing the whole program. Any reduction in the total number of treatments will increase the remaining treatment cost by 10% for each treatment dropped."