Back in 2011, the Avril Lavigne Foundation had an incentive to donate for the Christmas season. If you were one of the first 100 people you would receive a letter and a personalized autograph.
Received in early 2012. No address. I donated via PayPal and they sent from their end after I was chosen as one of the first 100.
Why is this in the authentic forum? It's real and I do believe I posted it in Feedback. I have had plenty of autographs from her in the past (all IP) and it is real.