Sample letters advising customers of a rate or price increase are available online at sites such as WriteExpress and SampleLettersWorld.com. ThePoolPros.com and DocumentsHub.com also provide good samples of rate-increase letters.
A letter notifying of a rate increase should thank the customer for his support and must indicate the effective date of the increase to allow him ample time to prepare for the new rates and to plan accordingly. The letter should explain that the increase is necessary to maintain the current level of service and express regret over its necessity. The letter may also remind the customer of the benefits or the quality of service provided and express hope for the business relationship to continue. A well-crafted letter may make the increase more palatable and help retain business.