I wasn't the only person to have this problem. Set a wedding up. Gave out a full 40 invitations. Blank invitation doesn't say anything about it nor says if its important. Throws it away.
Unable to attend my own wedding. lol.
So annoying. Missed 2 weddings. 1 Because I had to travel. And 2 due to this necessity of the Blank Invitation. I wish the Invitation clearly stated on it that it was necessary for the marriage. Otherwise, I would have kept it.