Amazon.com — mobile phone exchange

Website:

www.amazon.in

I searched for Mi note 4 on Amazon and it shown me mi 4, that time i could not found any difference in MI note 4 and MI 4 and ordered MI4 wrongly both the phones are same in brand name and configuration, I made payment through credit card when I received the phone then I realized that phone size is smaller than what I have ordered for, I had ordered for 5.5 inch screen size but received 5.00 now I want to exchange the same but they (amazon team) are not supporting, if their site doesn't find difference between MI note 4 and MI 4 then how could I, I don't want money back just want to buy Mi note 4 of same configuration, also on box detail it is written 4gb ram but in actual showing 3.5 gb total ram and free ram 1.7 gb only, my registered id on Amazon is [protected] and [protected]@gmail.com my order no. Is[protected], it is also written there Returnable until Nov 30, 2017 but they are not even ready to exchange