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Express Co. New York. Dear Mr. Frank, I am writing to let you know that our company (Express Co.) just won a big client and the account allocated to us. The client has a big potential for a long term contract with Express Co. The management has high hopes for us to do an exceptional job to satisfy the customer. It has emerged that the new client needs a proposal by close of business on Monday next week. Since we cannot afford to fail the client, I am writing to request a favor from you. Whereas ...