Location/place: kolkata/shyambazar

Name of company/service: Data Matrix

my name- jaba basak.my address-14/1 brindaban basak street.kolkata-700005.jorabagan.i had ordered a new cell phone. 2 days ago.but when they delivered the phone i decided that i will not take that one as it was chines phone(Lephone A20).its seal was not broken.The next day when i asked them to change the phone they just gave an excuse that once they had sold any goods they will not exchange it any more.but my seal was not broken.name of the shop Data Matrix.address-318, chittranjan avenue.they had just cheated me.it costs rs-3000.i just want my money back.