I ordered a trial but found out from my dentists that I had too many fillings in my front teeth that this product would not work for me. I tried contacting them with no response until the time frame to send it back had run out. They ask me to contact my phone company to confirm that I had called several times before the time was up. They finally okayed my refund and told me it would be posted immediately. From December until now, March 12, this has not happened. Then they told me it was Visa's problem and then told me to work it out with... read full review »