私は本年から輸入代行をあなたの会社に依頼している日本人です。まだ10回程度の依頼しかしてない、小さな取引き先です。それにもかかわらずあなたにご連絡をしますことをどうかお許しください。
何度か素晴らしい仕事をして頂きました。何度も担当の方には感謝しました。今でもその気持ちがあります。ただし、です。あまりにも悪意に満ちたいたずらが2回続きました。アメリカでは些細な出来事かもしれません。しかし日本では、このようなことは全く考えられないことです。
I have experienced some excellent services you provided in the past. I've thanked the person in charge many times. I still want to trust your business. HOWEVER, the last two times, I have experienced extremely malice pranks. This may not be anything so unusual in the U.S.; but in Japan, such pranks are entirely unthinkable.
I have had such a wonderful relationship with you. I was thankful to your staff over several occasions. I still do appreciate what your company has done. However, 2 very ill-meaning and intentional pieces of mischief were carried out. They might be small matters in the U.S., but they are unimaginable in Japan.
Inspite of all this please allow be to contact you and please accept my request.
I have done good work many a times and have been praised by the person-in-charge.Even now those feelings are there.Those are correct.
For a minimum of two times for now a mischief full of malice has been continued. May be this type of behavior can be slightly tolerated in America.But, you cannot even think about it in Japan.
あなたの会社の作業員の責任と断定はできません。しかし、実情として、それ以外考えられません。以前も打診しましたが、どうか、あなたの会社の作業員の教育をしっかりとやってください。重ねて、失礼を御許しください。
However, as a fact, it cannot be thought other that this.
I had approched for this matter before, but please explain it to your worker well.And once again, ask him to be polite.