Buy4house.com - buy4house is fraud. want my money back

i got a call from buy*house.com on the **th of may ****. Their numbers are ***** *****, ***** *****,+** ***** *****. so they called me and told me i have been chose as one of the lucky customers to win a free gift, for which i had to purchase something from their sight.. i purchased a bedsheet worth rs***. After which i got a call saying i could choose the free gift , to which i chose an i phone x, i was asked to pay the gst and insurance for the product(which is totally refundable).A day later i received a call sayin * customers gifts have been damaged so the amount would be transferred to my account of the gift. After taking my account details i was asked to pay two amounts to activate both the cheques which were also refundable. Also a prize money tax was asked for.after all the above procedure i was told that due to some systemic errors i wil not be able to receive any of the above (the money i put in for the gst, insurance, etc ) nor wil i be able to get the iphone . instead they proposed to give me an hp laptop worth *,**,***rs, for the money i have paid. and also all my money was to be sent back to my account after recvin the laptop at my home.i was sent an email of the same. n was told that within *days i would receive the trackin id for the product. Today,**th june( a month later) they give me a tracking id, which was totally wrong. and promised in * hours time i wil be sent an email of the same with the correct tracking id.
Pls help me get my money back. This company is a fraud and have been ignoring calls for the past so many days..