In order to do that, though, they typically require that you have all the debt that is owed to you in writing, so make sure you have records of all the email exchanges as well as the invoices with your client.
Use this script and most of your clients should pay you within two weeks. When that happens, there's a risk the client will choose not to pay the bill, since he or she is not concerned with preserving the relationship.
Meaning, we are telling them there is an action that they need to do. Another option is to have very strict criteria for when you deliver your product or service.
You will also see a low number of people actually going into their account and making a payment. A few more observations: Ask for the payment simply and be straightforward. Invoice promptly.
Calling people takes away the protective layer of anonymity that emails provide — making it MUCH harder to ignore your payment request. Then we tell them them they have a balance due and actually state the balance amount.