You are the manager of a restaurant that has recieved a letter of complaint about poor service from a member of your staff. Write a letter of apology to the person who has complained

Dear Sir or Madam, I hope this massage finds you well.I am writing to extend my sincerely apologies for the poor service a member of my staff.Your opinion is very significant to our colleague. Needless to say,we proud ourselves on providing a high level of service.Nevertheless, my worker was mistreated for you a few days […]