Amazon India — refund of my payment

Address:

Mumbai City, Maharashtra

i purchase a phone of rs.9999.00 from amazon.in on 18th april 2015 phone got dead on third day, on 25th april 2015 amazon took back the phone from me and told me that ull be getting the refund of this phone in 10 days on 26th april 2015 amazon did a online transfer in my account & on 26th april 2015 they send me an text msg saying ull be getting this refund in ur account in 10 business days & provided me a refrence number for the payment i waited for some days but payment dint came in my bank account some how my bank says that this refund number is not correct & if possible than plz give the rammitence copy for the payment & i said this same to the amazon. amazon is asking me to call my bank & ask to make a dispute for the payment & when i ask the bank the bank reply is that they had never faced any of this kind of the situation & they never ever heard about any charge dispute today is 19th may 2015 still now i dint got any payments & im not getting any positive response from amazon.in kindly plz send me my money back..