Originally Posted by airplanepeanuts

This happened to me. I had transferred over 150k into my alaska account for 2 one way award tickets and took the flight a few months later. Since it took a few weeks to go from SPG to Alaska, upon my return I put in another 150k but this set off a fraud alert because my account was locked with some reference to "discrepancies"

I called them at 11am PST and they simply said the high volume of points from SPG is alarming since they have encountered fraud in the past. They asked for proof of residence and I sent it over at 1pm. And by 1:30pm they had emailed me that all was well and released the account. The representative was Yvette and appeared professional and competent.

It's good that they are catching fraud because if it continues they may inflate redemption rates higher.
If you have not done anything wrong you have nothing to fear. Goodluck.