Hello to all sifu here, I have a very important question to ask.

Just place my booking fee for this maple residence Browalia 22' X 85', as I really like it for own stay. But when I look into the built-up calculation in details....no matter how I count the result is still around 2178sft (in brochure is 2433-2508sft), and then I started to wonder - it's quite impossible for developer to miscalculate right? So I ask 2 of my architect friend, both also told me it's miscalculation. 2433-2178 it's a 255sft difference! In terms of total price is like we are paying around 102k more. (Kindly refer to layout plan as attached)

Does any buyer notice this? If so what shall we do next?
Really confuse me here

https://pictr.com/images/2020/09/07/71dxtl.md.jpg


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