Dear Mr. Grison
Thank you for your letter of 6 May 20XX concerning the faulty tableware.
I am extremely sorry to learn that the delivery you took on 2 April was of poor quality. This was due to our faulty packing machine. We now have it repaired and we will replace the faulty delivery free of charge within three days.
We have been supplying you for five years and we will replace the faulty delivery free of charge within three days.
We have been supplying you for five years and you have always been one of our excellent customers. Therefore, I greatly regret the inconvenience it has caused and would like to offer my sincere apologies. I can assure you that such occasion will not occur and our supplies in the future will again be of our usual high standards.
I hope that you can use our company as your supplier in the future.
I am writing this letter to apologize to you for the mistake that we sent the shoes in wrong color. I have acknowledged that my fault has brought you great trouble and unconviniences. I hereby express my deep sorrow for this matter and we are going to do our best to make it up to you. I assure you that this mistake will not happen once again and would appreciate very much if you could give us a chance to show our sincerity on this matter.
Dear Mr. Clinton
Thank you for your letter of 9 May 20XX concerning faulty goods purchased in our store in London.
I am very sorry indeed that you were not satisfied with the pencils that you bought from our store.
Our company in always trying to improve the quality of its merchandise and we are very unhappy when one of our products does not give satisfaction. In fact, this was due to the breakdown of our packing machine.
In the meantime I regret the disappointment you were caused. As a gesture of goodwill, I have pleasure in refunding the cost of the pencils. And enclose a gift voucher that you can use in our London branch.
Thank you for bringing this matter to our attention. I hope any further purchases you many make at our stores will be up to our usual high standards