State Bank Of India [SBI] — my refund didn't come yet

Address:

near bloodsun club, abhaynagar, agartala, near atm, abhaynagar, West Tripura, Tripura, 799005

I have been made a purchase of one moto x bettery of rs 1269 but due to some fault in package i return it but i didn't got my money back i contact vd amazon they said they already inciate my balance of 1269 in my acct they giv me transaction id also but sbi direct denied it. So wat can i do nw if i call amazon they are givng me valied reason n state bank of india direct denied my tranction id is 364717. Nw plzs solve my problem um a student n money is so valuable for me.