Former Big Brother contestant Makosi Musambasi was banned from entering Britain when she tried to get in using a friend's passport, The Sun claims.
Officers from the UK Border Agency recognised the 31-year-old after she arrived at Heathrow Airport on a flight from Lagos in Nigeria, where she currently lives.
But she was sent packing after they found the dodgy passport and confiscated £12,000 in cash, which the body is now investigating.
Makosi came third in Big Brother 6, with her risque antics on the show apparently causing outrage in her native Zimbabwe. She later returned to the house for Ultimate Big Brother, but fared worse, leaving as the fourth evictee.