KIA Motors review: unable deliver required car but offer facelift model and asking for additional payment

This is my 3rd complait and will continue complaint till receive KIA favarable reply. I am Toyota car owner, I intend to change new car during GST free period to enjoy cost saving, after survey, I short list to 2 which is Mazda CX5 and Kia Optima GT, since Optima GT give better offer ( Festival discount : 15kRM and guarantee for Free Tax, I finally decide to paste an order to KIA Optima.
it is really a challenge to me to go for KIA as KIA doesn't impress me in the pass, after test drive experience and watch review on internets about Optima GT, finally YES to me to own the Optima GT.
JD Automotive SDN BHD promise to deliver car somewhere mid August but eventually postpone to mid Sept. the most upset me is that they unable to deliver the same spec car but replace with facelift model and asking to pay an additional of 15kRM.
THISE IS NOT FAIR AT ALL. I don't asking for facelift model, mutual agreement was done at the moment I pasted order, this is wholly a management issue to KIA which I will not compromise.KIA has able to produce high quality cars but how about the Sales & Services, similar issues will not happen to Japanese cars maker even Produa give rebate for their delivery delay.I strongly urge KIA management seriously look into this issues and give me a fair business deal.

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