Geek Retail — pest insects repellent

I ordered pest repellent online and receive the product of amount 480/-
Checked it after making cash payment which is in damage position and which is not working
I am sure they supplied duplicate product which is not at all working want to return back your product and get back my cash
I have not received a message also for delivery the product
I do not receive the invoice after delivery the product
Please check this complaint as soon as possible and return back my amount as soon as possible