TV Fox Antenna Strong Current Enterprises No returns and No Refunds London England

I ordered the antenna on line on 1/21/2018. I called back on the same day to cancel the order and had to leave a message. I also e-mailed them at that time that I changed my mind and to cancel the order. 

A couple days later a man called me and told me I needed to purchase an amplifier for the antenna to work. I told him I didn't need one. What I really need is where I need to send the antenna back for a refund, He told me, "We don't take returns and we don't give refunds". Then he hung up.

I still have the package unopened.  The return address on the package is; Strong Current  P.O. Box 4701 Pacoima, CA 91333-4701. Can you please help me get my money back? Thank you