Dear Khun Sushin,Please help us abo

Dear Khun Sushin,
Please help us about the price/quotation from IR Singapore, today (again) our customers call to me and Mr. Wijit asks about the price/quotation.
With feedback and many questions from customers about the price/quotation come to us.
We don't know how to deal with with customers, we can only say that we will be proceed as soon (It is many times that we have responded like this)