Review on Enjoy Your Espresso In Style With CNGLASS Double Wall Glass Cups - Set Of 2 by Matt Nichols

I purchased these. I love to use these for my tea/coffee. Within a week, a hole poke thru the bottom inside layer. I couldn't believe it. I am extremely careful when washing them. I decided to just throw out the glass thinking I did something. I decided not to say anything and then today my second one did the same thing. I am really upset about this. I love these glasses, but obviously there is a manufacturing problem with them. I recommend not buying them. I would like to know how I can get them replaces