It does sound very cheap, but if you have been able to increase your prices to a degree that, although you have lost some custys, you are still earning more than you were, then I would run with it for now, and over time bring your prices up to what you feel they should be.
You've only lost five. When they realize that they won't get another decent w/c for what they were paying before, they'll come back.
Best wishes,
John.