Amazon India — lg w 30 mobile (10k)

I ordered a mobile LG W30 which i got on 16/08/19. But its damaged product totally looking like its has been used for many days. Its has lots of scratch on mobile screen, backside and charger also even charger not had poly packing. The same day i called to customer care of amazon they said they exclate my issue and this phone will get replacement within 24 hours. I dint get any confirmation msg, call or mail even it has not been updated on app also but i waited for 24 hours there is no response. Next day i again called them they said there are some error so they are sending me a link i can arrange a replacement through that link i tried that many times but it gave me error so i took screenshots and send them mail regarding this after that there is no response. I called them same day that i sent you mail regarding error on that link which you sent me they said again i have to wait for 24 hours and again they didn't sent me any confirmation mail msg or call but i didn't had any option so i waited again for 24 hours. Now this 6th day i am doing calls sending mail continuesly but there is no response from their side and they are saying same thing on every call that "they dint get any mail call before this from my side and there is exclation registered now we registering you complain you get replacement within 24 hours please wait. " This thing they are doing from 6 days now only 4 days left for replacement but i think they are just wasting my time only. Now i dont need replacement because i dont trust them they are doing this intensionally so i need refund so take your product back and give me my money back.