Email the Support Team- HSNArcadePrizeFulfillment@hsn.com

Please bring back Mahjong , it was the only game I really played, not much reason to tune in anyore, very disapointed that there is replacement

You can reach the Arcade Team by going through the Help menu on the main Arcade page and choosing the last option.  Use this for problems you are having with the games, giving them as much information as possible about your system, the game, and what is happening (be very specific).  They are not decision makers and inundating them with emails complaining about games being removed, etc. is not going to be helpful and may, in fact, be detrimental.