We have several approaches on slow payments from good customers. We first give incentive discounts for early payments and if this does not work we have late pay interest charges and fees worded into our service agreements and clearly stated on our invoices. When we make our first collection call, we offer to waive the charges if the payment is promptly made. Should they continue to avoid payment, they are notified they are going on our restricted service list until the payment is received.If all the above fails then a personal visit is made to the CEO or COO of the company to find out why payments on invoices are occurring continually. Our company also has credit card or electronic payments set up with many of our large customers that keeps them current.