Confused about OWW

I just sent “Poison Inside the Walls” to the SFF Online Writing Workshop (OWW) for review.  I was shocked to find that my 6900-word story registered as 8575 words!  This technically puts it over the 7500-word limit.  A quick search found another story scoring over 9000 words.  I’m sure there are more.

I’m new so I don’t want to rock the boat.  I’m not sure how they calculate their wordcount.  I suspect it’s based on pages or lines.

If anyone has advice about the OWW word count, let me know.  Otherwise, I am asking members to give advice.  (If any nonmembers want to chime in, let me know and I’ll email you a copy).

-Oso