Another one who's can't log in

Hi, my problem is that i can't log in into the game. No matter what i do, i just can't log in.
2 days ago, i was playing normal. I've invited a friend to the server, and we was playing together, leveling together in Lordaeron. Yesterday we decided to play for a while, and he can log in but I don't. I've tried several times, and nothing, just can't get in.
I don't know why this is happening, but i know i'm not the only one. I've seen too many threads about this, with no responses and no solutions. Well, I brought a friend here, and he's gonna leave if i can't play.
Maybe this is pointless to most of you, but is important to me. This is a social game, we play with friends. I used to play in the official servers of Blizzard, but i came back here just for my friend, and in just one day, i can't play.
I can't send a ticket ingame, i just can't log in.
I'm waiting for any help

i play with friends too, i have this problem too that i cant login.
if i do it it says unable to connect try again later etc,
i dont think mods or devs are gonna respond/help us.....

Same here, when i check my account panel it says that i am suspended for advertising. Never advertised anything, what the hell they are banning me for???