Hello, my name is***** am a qualified lawyer and it is my pleasure to assist you with your question today.
Please can you provide a brief background on what the reminder is for?
Thank you for your response. In order to assist you, I will need you to provide a bit more information please. What is the reminder letter for?
OK thank you, ***** ***** it with me. I am in court today so will prepare my advice during the day and get back to you at the earliest opportunity. There is no need to wait here as you will receive an email when I have responded. Thank you.
I suggest you give it 7-10 days, unless you have given them a specific deadline in the letter.