Подскажите,пожалуйста, как правильно сказать по-английски:

Unfortunately, your documents I still have not received. Could you, please, check the location of the letters on the Internet? If it is already in Khabarovsk, I'll go to the post office to learn why he has been brought

Странные ответы-копии.. . Если это все-таки переводчик, то он сработал совсем неплохо, вот только в последней фразе следует написать:
...why it has not been brought

Unfortunately, I did not receive your paperwork yet.Can you check online, please, where it is? If it' In Khabarovsk, then I'll go myself to the postoffice to find out why it was not delivered yet.

unfortunately I haven't got your documents still. could you check up the letter's location on the net,please? If it is in Khabarovsk, I will go to the post office myself to know why it hasn't been delivered.

Unfortunately, your documents I still have not received. Could you, please, check the location of the letters on the Internet? If it is already in Khabarovsk, I'll go to the post office to learn why he has been brought

Unfortunately, your documents I still have not received. Could you, please, check the location of the letters on the Internet? If it is already in Khabarovsk, I'll go to the post office to learn why he has been brought

Unfortunately, your documents, I have not yet received. Could you please check the location of letters on the Internet? If it is already in Khabarovsk, I'll go to the post office to find out why it did not bring