"Gartner reports there has been a major shift in CEO priorities from early in 2009, switching from cutting costs to retaining customers and enhancing existing relationships." [channel insider]
For many service providers, they choose not to bother their customers. One problem: You become just a line item charge on their monthly credit card statement. You are just a number. A number to be shopped!
Spend some time in customer retention. Talk to your customers. Make sure that any nagging issues are resolved. Get a referral. Get a testimonial. Upsell them! Or cross-sell them some services that you can still get paid on. Make it sticky!