Amazon India — I had ordered an item and have not got the item but they are telling its delivered and not refunding me also.

Address:

Swati nilaya balaji nagara 8th cross sira, Tumkur, Karnataka, 572137

Item ordered hyalu gel the expected date of delivery was 5th to 12th March and I sent an email to seller on 13th as I had not received the item.for that they replied that the product is delivered on 2nd March(I haven't got any pre delivery phone calls or message regarding delivery).I have complained many times in Amazon customer care seller and blue dart also fow which I am not getting any solution. Raised A-Z claim it is denied and bluedart doesn't have any proof of delivery just sending an attachment with number I don know how much important that is.Following that I enquired in bluedart also Mohammed suhail(delivery boy)was not available and they are claiming that he has left job.I am wasting my time in this since 3months and not got any solution.