After Dentech Whitening trail, I received the unexpected first shipment and being charged $89.95 by Dentech Whitening. I called (888) 822-4806 to ask if I can mail the first shipment back for them to credit me back the $89.95. They told me to email [email protected]; I got no response. If you know how to return the shipment and get your money back, please contact me. Thanks. read full review »