Amazon India — Missing phone in the box

Amazon .inapp placed my order on Oct 12 . Expected delivery is on Oct 18, on Oct 18 I received a call from Amazon at 10.45pm, call cutted then informed to customer care on Oct 19 . Then on Oct 20 I received my order, when I opened my box PHONE Is THEFT. Took a video raised a complaint as product missing . Customer care called then they said wait for 5days for investigation, I waited till Oct 25 . No response from customer care, then I recalled them no response on Oct 25 . On Oct 26, given me irresponsible answer as we can’t do anything related to this supporting seller. Phone :[protected]