With reference to the A and B, it would be much appreciated if you could answer to our inquiries on the first business day after the holidays.
Wth reference to the A and B, we would appreciate it if your answer to our inqueries would reach us on the first business day after the holidays.
With reference to the A and B, it would be much appreciated if you could answer to our inquiries on the first business day after the holidays.
メールというよりビジネスレターとして書いてみました。
with reference to ~ に関して
it would be much appreciated if ~ 非常に有り難いと存じます。
on the first business day after the holidays 休暇明け最初の営業日に
Wth reference to the A and B, we would appreciate it if your answer to our inqueries would reach us on the first business day after the holidays.
言い回しを少し変えた表現です。参考にしてみてください。