.op (date) (name address city, state, zip) Dear Sir or Madam: We have been receiving many complaints from our customers about your ____ (item). They have not been satisfactory and, therefore, we have had to refund the purchase price on many of them. The trouble seems to be with the last shipment. The ______ (item) before seemed sufficient and we did not have any complaints from our customers. Please check to see if there was an error in making these ___ (item). We would also like to suggest that you check to see if they are being packed with enough protection for shipping. We have ___ (amount left) left and we would like to have you send us a replacement shipment. We will wait for instructions from you before returning this, these (item). Sincerely, (name)