I cannot believe it took this long for you to get your sofa. Something was seriously messed up at your selling dealer to result in this long a lead time to get a Just In Time program piece. That's too bad - I can tell you with 99.9 % certainty this was not a factory issue resulting in that long a lead time.

Delivery companies throw out the informational packets that comes with the pieces. - they almost never make it with the piece. I have fought that battle for twenty years to no avail. H&M won't tag it onto the piece, they are loose - and they get pitched. Your selling dealer can get you a replacement upon request.