invader: Also, I supposedly should receive an e-mail with the confirmation but I didn´t, I also checked the spam folder
No, there is no confirmation mail.
Well, I've just typed test message and there is indeed no confirmation as it
was before.
It
was one line text on green border above or under "Contact Us" header.
EDIT: this time I was using "other" option, before I had some technical problems. That could have also some meaning but.. Anyway, at least "other" option is missing confirmation dialogue for me now.
EDIT2: I've just typed message to support about this bug using "problems with website" option - no confirmation either.