Sony India — Issueing me the USED SONY mobile in SONY EXCLUSIVE

Address:

Erode, Tamil Nadu

Dear sir First of i am a big fan of SONY, I craze too. Having TV, Mobiles, Music Systems in my home all are SONY Products. I Bought a new SONY XPERIA M (Single) model mobile on 16.03.15 at ERODE SONY EXCLUSIVE. I believe and enter into the shop, They issue me a used mobile to me. I really socked after i saw that dust in the mobile and few scratch in the mobile at back Side and more few photos and videos are there in mobile it was took at Feb 5 2015. I asked the manager regarding this issue, He was told me a blended answer like shop is under working so the dust was stay in that mobile. Is it really a acceptable reason.?? I was return the mobile after a huge issue between me and the manager at the same day night, They told me get money back on tomorrow (17.03.15) I went the shop at 5.30 pm, They told me still amount is not ready. They are treating me like bugger. Still my money is there. I don't know what i want to do. Proofs are attached (Bill copy). So Kindly please accept my complaint and solve the problem. Thank You.