Apparently the Halloween event ended earlier than expected, leaving a number of players angry they didn't have the expected time to get the skins they wanted.
http://kotaku.com/overwatch-halloween-event-ends-early-leaving-some-play-1788498260
Now I don't feel so bad about cashing my points in early to get my Witch and Jack'o'Lantern skins.
I never got enough credits to buy any specific skins anyways. Guess I'll just have to live without the ones I didn't get. It would be nice to be able to turn in those Mercy witch and Bastion tombstone skins I'll rarely use for the Reaper and Junkrat skins though.
There is always the inevitable Reinhardt or Torborjn Santa skin that will be here in a couple months.