回信供參考:
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I can only assume then, that it has been lost in the postal system - and I
entirely understand the disappointment this inevitably causes.

I will ensure that a replacement order is sent out to you immediately.

In the event that both dispatched orders arrive, we would be grateful if you
could return one to us
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Thank you for your co-operation.

We really are a good little company working hard to constantly improve
our service and maintain our low prices.

Thank you for your support - we hope you will continue to shop with us
in the future.

If you have any further enquiries then please do not hesitate to contact us.