Complaint letter from business to business

Dear Mr Thompsen,
I recently received a letter from a Mr Robinson, a valued customer
of ours. He purchased an Italian coffee table and four French
dining-room chairs from us which your company delivered to his
residence.
He has written to complain that the purchases arrived damaged. We
pride ourselves in the quality of our products and would like an
explanation as to how this mishap occurred. Even though the items are
insured, our reputation is at stake.
I would be most grateful if you would reply as soon as possible so that this matter can be resolved to everyone’s satisfaction.
Sincerely
patrick sumampouw

Customer Services Manager