Because this is commercial title, the developer is drafting the contract according to his favor.
1)your first point is valid, I am gonna argue from there.
2)I have signed in black and white in the purchase form when paying RM10K booking fees.so how?
3)It is pretty hard to judge for the waive of gst now as the current project haven't got approve by the authority

Okay Bro, your Property is Commercial - so all the HDA rules such as A&P, Housing Tribunal is out the window.

So, you need to decide, you wanna proceed or walk away

If you walk away, must be prepared to lose part of your deposit

But for the Bank Letter of Offer, write a Letter to the Branch and CC to HQ and Bank Negara Malaysia that you wish to withdraw as you have been mislead by the Developer on the terms of the Sale and you do not wish to continue and you expect Maybank to waive all penalties cos

a) You were mislead - give full details on what terms was different

b) Have yet to sign any documents and Loan not drawdown - so no cost incurred

Remember to cc the Letter to BNM