am i the only one or is this a new excuse? over the past year ive had a few new people or one timers not pay after i mailed out invoices. after we start sending late notices or calling, they say they never received an invoice. theres been about 6-8 instances and a couple should have gotten a couple notices that they claim to not get. none of them ever bothered calling to notify us that they never received an invoice after a few weeks had passed. is the mailman trying to screw me or is it these people? any one else have this happen? we're switching to credit cards next season to prevent stuff like this from happening.