Dear
The [product] which you sent us for repair has been modified in the
following manner: [specify]. This modification is a violation of the terms of
our warranty.
I am forwarding a copy of our written warranty in case you have misplaced
yours. You will note that the warranty does not cover "A defect caused by the
modification or repair other than through [specify] or its Authorized
Agent."
We will make the necessary repair for you, if you wish, at our flat charge
rate of $ . We have enclosed a card for your convenience with pre-printed
instructions. Simply check off the appropriate box and we will act accordingly.
We must ask that you remit the cost for repairs with your instructions, if you
would like us to service the product.
I trust you will understand why we are unable to provide this service free
to you at this time.
Thank you for purchasing one of [name of firm's] products. We hope that we
can be of service to you in the near future.
-商务英语
daiy