The reality TV personality revealed on Twitter that she was prevented from entering the house after producers enforced a ban on TOWIE stars.
Writing about last night's (August 15) launch show, Fowler declared: "[I] would to have gone in but they said No towie this year. Booo xx (sic)."
The glamour model also defended "stunning" housemate Danica Thrall, revealing that she had been a judge at a beauty contestant won by the Sex, Lies and Rinsing Guys star.
Fowler recalled: "When [Danica] won miss derby i was judging,she hadnt actually won on points.But I kicked off as she was by far prettiest.So she won.
"Shame she lowered herself to a 'rinsing' programme bit each to their own. She's a stunning girl."
Fowler's claim of a TOWIE ban may explain why current cast member Lauren Goodger was absent from the Celebrity Big Brother lineup despite numerous reports of her joining the show.
Former The Only Way Is Essex stars Amy Childs and Kirk Norcross were recruited for Channel 5's first two series of Celebrity Big Brother.
Photo gallery - Celebrity Big Brother summer 2012 housemates: