June 1, 2008
(Name, Company, Address)
I was impressed by your proposal presented but I regret that we are unable to accept your proposal because we are currently under the contract of Go Point of Sale for similar services.
Although I find the system in your proposal to be of high standard quality, I will be pleased to discuss the possibility of doing business in the future after the contract expires.
Thank you for your time and effort presenting your proposal and I wish you all the best in the future.