FB strange Behaviour

Hi, i would like to share the following.
1)Is the invitation form totally different compared to twitter or linkedin one? I meant there is no list of users with avatar showed, but just a classical email form!
2) As you can see from the pic1, the logo is wrong. Where is it retrieved from? Where is it possible to select the URL to redirect the user instead of going to the login page.
3) The received invite, as you can see from pic 2, contains a wong image (instangram logo).
Suggestion/question
1) Is it possible to disable one provider(e.g. csv or yahoo)
Cheers