Dear Mrs. Brown,
I am writing to you with regard to your letter from 30th November. In that letter you wrote that your company will deliver to my school 20 new CD players. I was planning to give them as the rewards for my best students. Your obligation was to bring them to the school by the end of December. Today we have 2nd February, and I have not heard from you since that time.
I hope, you did not forget about your obligations. It is really dishonest of you not to fulfill the duties. I am truly disappointed with your company and I will not use its services anymore.
I tried to call you, but your secretary told me you are unavailable. I hope, you will prove to be reliable enough to write me back at least. And don't forget that me and the students are all waiting for the delivery.
I hope to hear from you soon. You know my phone number and e-mail address, so you are able to reach me.
With regards
Kk
