✔ 最佳答案
(1) After discussion with my boss, I am writing to advise that my previous quotation is given only based on your order requisition form, which includes the following items….. Furthermore, if you wish to have the goods supplied by your designated suppliers, the prices of which would be three times higher than those provided by suppliers from mainland China. Therefore, I am afraid we are unable to abide by our quoted prices. We will fax to you the price different once we have contacted your designated suppliers. In view of the above, my previously quoted prices are not applicable to these new items. My boss will hold a meeting with Mr. XXX sometime next week to discuss this matter further.
(2) Since your company always changes the material requirment for the goods after receiving our quotation, our prices can only be confirmed upon receiving your firmed requirments.
Note : Since I am not fully understand what you are wirting about, you may have to modify my translations to suit your exact meaning.