What I got instead was the smooth version which is at least a half-inch longer, intolerable for a keychain light.
The OP says he has a light, just not quite what he was expecting.The light was supposedly shipped "weeks" ago. If you haven't got it, then that must mean they didn't ship it or it was lost. The latter is probably 99% the problem. In which case you should call them and talk about it.
Could be his error, ordered the wrong light.
Peak may have sent the wrong light.
Either way a calm chat with either Robyn or Curt will have it sorted out.
All the other posters here are just trying to reassure the OP that Peak are not shady and will see things are put right.
Norm