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The meterials I bought from your store yesterday are defective. They were delivered to my house today in the morning. MI request you take the items back and send me new ones as soon as possible.
Yesterday I bought [xxxx] at your store. When I received them today, they proved to be defective. [Be specific - are they missing bits or do they not work when turned on?]
Please contact me to arrange for them to be collected and replacement [xxx] sent as soon as possible.
Plz correct this letter 
Linear Mode
