MFSJ can not accept your offer : to

MFSJ can not accept your offer : to remit THB 15,074,428 (off-set amount of THB 23,803,527 and 8,729,099) without deducting the WHT.
It means if MSFT confirm them, MFSJ will deduct WHT and remit THB 12,813,263.80 (THB 15,074,428*(100%-15%)).
The portion of WHT of THB 15,074,428, MFSJ can not take the foreign tax credit from Japanese Tax office.
Japanese tax office notice/check the relationship the license sales amount and its WHT amount.

If MSFT can not accept our WHT deduction, we need to postpone the settlement the attached two invoices.
In addition, would you please search for the solution of it please?