Questions 13 to 15 are based on the passage you have just heard.
13
A.Telephone the vendor immediately.
B.Write a letter of complaint.
C.Take legal action.
D.Argue with the vendor.
14
A.They pay no attention to customers' complaints.
B.They are pleased to answer customers' complaints.
C.They are not likely to refund customers' money.
D.They may replace defective products first.
15
A.To break off a deal.
B.To ruin the vendor's reputation.
C.To ask for compensation.
D.To give vent to their anger.