Kim, Khloe and Kourtney Kardashian are REFUSING to film season 10 of their reality show ... unless the person stealing their money and jewelry is caught.
Family sources tell us ... the girls are convinced whoever has stolen 10s of thousands of dollars from them works for the TV show.
All 3 thefts -- $4K taken from Kourtney's Hampton's rental, $50K stolen from Kourtney's Calabasas home and $250K in jewelry taken from Khloe's house -- appear to be inside jobs, with no signs of forced entry.
The 3 women say they've done everything they've been asked to do to thwart the thieves -- hiring additional security, installing more surveillance cameras and rotating staff -- all to no avail.
K K and K want producers to force the crew to take lie detector tests.
Filming is set to begin in October but we're told the girls won't play unless the thief or thieves are nabbed.