Enquiry About Discount Rate

Dear Mr. Alan,

I received the goods you sent together with the invoice (No.1234). On checking I found that you have given me only 20% discount instead of the usual 25%. This is most irregular.

Could you give me a new invoice with the usual 25% discount for the goods. Herewith I return the old invoice to you.

Thank you.

Yours sincerely,

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