To request a telephone conversation
[Date] [Name] [Address] Dear [Name] I would be very grateful if you could help me. I have been trying, without success to telephone you to speak to you about [subject]. I can appreciate you are very busy at the moment but I would love the opportunity to discuss with you the benefits our new [service/product] can provide for your company. Our research shows that our [product/service] could [reduce your costs] / [increase your profits] by [amount] a [period]. May I telephone you at [time] on [date] to see if we can arrange a meeting to discuss this further? I look forward to speaking to you. Yours Sincerely [Your Name] [Your Title]