Add to the following

That based of our conversation that you have mentioned that your budget is $400 and we are willing to accommodate further food proposal to service their needs. Let them know that our goal is to build a future partnership with MBM ETC

Hi Pamela,
Thank you for your response. I completely understand your concern about the budget. The higher invoice amount is due to the extensive preparation of the food, the use of high-quality ingredients, and the pricing of these ingredients needed to create the dishes. We always strive to provide the best quality food to our customers, which sometimes does result in a higher cost.