please check my two sentences, thanks

[Zoe2008]

Please ensure all the goods have been reworked and packed for re-inspection tomorrow. We have no time if it is fail again. Please pay attention on it.

The best delivery date is end of April and the payment term is changed to 20 days post dated cheque against the original document. You are not required issue the letter of credit for us.

[Route21]

Hi Zoe

Please ensure all the goods have been successfully reworked and packed for re-inspection tomorrow.

Please pay very close attention to supervision of the rework. We have no buffer time left for it to fail inspection again.

The best delivery date, now achievable, is end April and the payment term is changed to 20-day post-dated cheque against the original document. You don't need to issue a Letter of Credit for us.

Hope this works
R21

PS As an aside, would you pack the goods before they have been inspected?