I used the affidavit, returning the summons papers. You should always pay attention to the wording they are using in that paper. Most of the time they say "you are invited to act". So WTF is that? Is an invitation (so you can nicely reject it) but "to act" ? Like in a theater, each participant will have a playing "role".

If that paper is not even signed, is just an automated printed paper, you can consider it even a fraud.