I hardly play this. In fact, I only put in like $5 here and there and play a couple .25 and $1 games. Just not my thing. Anyways, I have the app on my phone and would like to keep it, but everyday SEVERAL times a day I get these notifications about some guys that keep inviting me to play in a contest. I do not want to. How do I stop these? (cannot find anywhere on site that tells me. Not even sure I know how these guys can send these invites to me) TIA.