I never realy deal with this issue, but my wife pointed out a number of people who owed me money and I added it up and it was like $9500 so I started calling around asking for my money, I felt bad because some I have done business with for years. No one had a problem with the call and I was worried I would get unhappy people about my service and none of that was the case either people chose not to pay until called or forgot or missed it. What do you do with receivables?