I order from Rediff but I am not receive product

my product not delivered
My Name Atri Kumar Ghoshal
My Contact No. 8158906948
An executive called me on 01-9-18 from +917291820115 and said you purchased many products from paytm and here is your reward as if you purchase any item of rs 3000 you won assured gift a Samsung Tv , jewelry, hp laptop,iPhone 6s . Then I purchased pack of 5 products of rs3047 and pay 3047 by Bhim Upi to . +918860435564 I order this item on phone.after some hours they again called and said I win a Hp laptop. After one day they call again and say I win a lucky draw of rs 520000 and to receive this amount in my account I will gave my account number & IFSC code . I refused to share my account number and said to deliver my item and gift. And I call every day but she doesn’t respond .now I realised they are fraud. Pls do something.
And I have call from 1800 532 7888 .
Contact No. 18005327888
Avidence – 1 msg, by +917291820115- Dear Customer, Thanks For Booking pack of 5 products (Large Luggage) Worth Rs 3047
YOUR BOOKING ID RED524845d
2 msg by +917291820115- Ref No-RN103960153
Pay the GST sent me Acc. No. By msg
3 msg by +918860435564
Bank Name: Kodak Mahindra bank
A/c link contact number is 9313355357
A/c Holder Name: Rediff.com
Ifsc code : KKBK0000203
But the Account Holder is wrong
Person

All phone no.
+918860435564
+917291820115
+919313355357
+918565893963
Government Certified no. 1800 532 7888