Promise promise and 48 working hours

I am Matilda Mortan and I may so tired of waiting for this company to just give me a letter to confirm that my car has been paid up in 2016. I have had a car accident and my insurance is waiting for the letter. I was in the bank last week when they called MFC and promised to send the letter. I have been asking for this letter for more than a month enough is enough..... I will have to take more action if I do not get the response from MFC in 24 hours.