OK, so I tried then logging in from the desktop version (again, from my phone), and surprise, it logged me in but I had to confirm that I was... me. That was, in fact, the reason for why I wasn't allowed to login from the "Touch" version of Facebook (how difficult can it be for the guys from Facebook to make it possible for that verification to be done from the "Touch" version?).
Recently, when I was again on a holiday, it happened the same thing, but this time I was requested to do a stupidity. It showed me 8 randomly pictures (if I remember correctly), from all of my friends albums, and I was asked to choose who that photos belonged to from a list of six friends (six different friends for every photo). I have a lot of friends with hundreds of photos, how do I recognize somebody if I only see a photo from a party where that person was, photo is which there are 20 persons dancing?!
This evening when I wanted to add somebody as a friend, Facebook told me that invitations from strangers (yes, they were referring at me) are temporary blocked, and that the person that I invited was going to receive that invitation later (OK, it didn't sound exactly like this, I'm not getting that anymore, but it was something like that). But how the hell do Facebook know that I'm a stranger to that person?!
For the same person (yes, I didn't give up), now it says this:
This Request Can't Be Sent
Do you know this user personally? To prevent misuse of Facebook, this request can't be sent. To learn more, please visit the Help Center. If you believe you're seeing this message in error, you can report the problem.
And this is not the first time I'm getting this. Somebody told me that I get this because the person I'm trying to add as a friend blocked me before, but if I keep trying, it will work, in the end.
I don't know where they are planning to get with these policies, but, unfortunately, the only thing they are doing is to turn the people against Facebook.