1.Please acccept our thanks for the trouble you have taken.

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2.We are obliged to thank you for your kind attention in this matter.

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3.We tender you our sincer thanks for your generous treatment of us in this afair.

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4.Allow us to thank you for the kinness extend to us.

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5.We thank you for the special care you have given to the matter.

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6.We should be grateful for your trial order.

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