answer: #Person1# lodges a claim against #Person2# for inferior quality and shows a survey report to prove it. #Person2# promises to repair the products and compensate #Person1#.
documents: #Person1#: The consignments of chemical instruments have just reached us. We have to lodge a claim against you for inferior quality I am afraid.
  #Person2#: Is there anything wrong?
  #Person1#: We bought 1, 000 sets of chemical instruments from you, but there are 40 not up to the standard.
  #Person2#: It's hard for us to believe it. Our instruments have been the best quality for years. Have you any reliable evidence?
  #Person1#: Here is the survey report from a well-known public surveyor in London. You may inspect the defective instruments personally
  #Person2#: Well. According to the contract, we are responsible for repairing or replacing those defective instruments. We ' ll send our technicians to repair them.
  #Person1#: Forty faulty instruments means that 4 % are not up to the standard. You should compensate us for 4 % of the total account on the contract, as well as for the inspection fee.
  #Person2#: I am sorry about the quality problem, but I propose we compensate you for 3 % of the total value apart from the inspection fee.
  #Person1#: All right. In that case we are still willing to do business with you.