It's the same every month, 10 days and we have 98% of our payments in to us. I mailed out Mays invoices on June 1st. By June 4th, hardly any payments were rolling in. I said to Matt, "I think something is wrong, I'm wondering if people got their bills." He says, "You worry too much". I said, "ok, whatever, but I'm telling ya, the same people pay the day after getting their bill, this month is different." He comes home on Saturday and says, "Mrs. Smith says she was surprised she didn't get her bill yet." I said, "see? something happened with some of the bills, they aren't getting to the customer." Today, I come home, and there is only one payment in the mailbox.. Btw, almost everyone would have paid by now, we still have 40+ payments still owed. The customer wrote a note: Dear Matt and Jodi: I have been out of town for 2 weeks. I just got back last night. After going thru my mail, I discovered that I did not have a bill from you for the weeks of May. I am sending a check in the amount of $265.00 for the 5 weeks. I believe I have calculated this correctly. If not, please let me know. Thanks a lot. So now what? Do I re-bill the customers that haven't paid when I know that each month they normally do by now.... or just wait till next month. I'm pretty mad about this, I don't see how some of the envelopes I mailed out could have been lost like that. I'm leaning towards just carrying over the balances until next month, these are all good customers, not deadbeats.