Dear Lingeswaran,
As checked with our team, we have discussed with you that we requested to change spec of NH-703B222B which have the story as below;
19-11-2015, we informed you by email, that we request to change NH-703B222B from original 20D to 14D and attached REQUEST FOR CHANGEING 4M. (Pleas check as attached )
20-11-2015, we have been send the samples by DHL with invoice CKT-15-166. ( please check as attached )
5-12-2015, you are OK with our samples by mail. ( please check as attached )
30-4-2016, we have been send the first delivery for new spec NH-703B222B (14D ) with invoice CKT-16-56 which we have note on Packing List as well.
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However, we are so sorry that we did not notice before delivery.
Thank you and sorry for your inconvenience.