Sorry for my reply late.
We have checked your breakdown cost and we have to re-allocated the details of cost or both account. And we have the issue of IE mold, due to we have got the claim from all customer that used IE mold so we have to hold some cost which related to IE mold.
We need your support as the follows:-
1. We need you revise the date of invoice, the details as in invoice and the amount due to we already closed the book of last year before got your invoice. However, after I get the finalize of reallocate cost, I will send you the details to revise invoice later.
2. We would like you to consider for the delay payment of March for 2 weeks regarding to the above cause. But for April we will pay you on time as commit.
Please be informed and consider in this regards. Thank you.