Smart Electronics — if anyone knows how to get back my money please help.me out

Address:	Aashirwad 21 anuk Soc,near Jay park nana Muva road,rajkot
Website:	Instagram I'd:gadgetstoreoffL_2

I was searching for a good mobiles before a month...then I saw a account selling showroom pieces of mobiles in low price...so I was glad to buy it ...when I was asking him he said it will be delivered within 2 days ...so he said to pay 4000 as advance...so I paid ...and later he slowly reduced his reply...and 2 days later he says to pay full amount of 20000...u was afraid and said u said me to pay only 4000 as advance but asking full amount...after arguing he blocked me...that's all my money has gone (4000)...so I was very sad ...so if anyone knows how to get back my money please help.me out of this... this happened before 8 months...someone pls hlp.me to get back my money his mobile no is [protected]