Instaflex review: rip off, do not ever order from them 42

The Instaflex company took 74.98 from my account in January. Soon after I received the product I called the customer service no. and got a RMA no. to return the product. I took it to the post office and handed it to the postal worker and still did not receive the refund. They tell me they never received it. How did they get to me? I have called numerous times and they tell me to talk to a supervisor and put me on hold or promise to have someone contact me within 72 hrs. and I'm still waiting. Do not ever order from them! It doesn't work anyway!