HELP I'VE BEEN ROBBED

I ordered an ozone unit for $200 from insidesun dot com and it broke after 2 weeks. I returned the item by certified mail. The company will not even return my phone calls or emails. The number listed on the website goes straight to voicemail. It has been 6 weeks with no phone call email or anything. I've been calling every day for 5 weeks and leaving messages, a real piece of shit company. Any ideas on how to get my money back?

if you paid by visa you can ask for their help same as paypal
remember your growing tomatoes for your nona

hahha