To ease the Bill and our work. Of course, we know that your work is very busy, and our system is cumbersome and not easy to calculate.However, we would be very glad if you can continue to be done at once.
To facilitate billing, and our work , we know that your work is very busy, and our system is complicated and not easy to calculate the amount you get , however. We will be very glad if you can do to finish in time.