Our proposal to (proposed service) was
submitted to you some time ago. Since we haven’t heard
from you, we wanted to be sure that it was brought to your
attention. We are enclosing a copy of our original
proposal for your review.

As you will note, the price quoted is good for 30 days
following the submission of our bid. Therefore, we thought
it would be wise to check with you at this time to see if
you are interested in having us (service to be performed)

We will be looking forward to your reply and hope that we
will have the opportunity to be of service to you in the
near future.