ITV unveiled its 'Whose Time Is Now' promo last month, featuring Leona Lewis, One Direction, Olly Murs, Alexandra Burke, JLS and Little Mix talking about their success since the show.
© WENN
© Rex Features
McElderry, along with fellow winners Shayne Ward, Matt Cardle, Leon Jackson and Steve Brookstein, were not included in the commercial.
"I'm not on Simon's [Cowell] label so I wouldn't expect him to promote me," McElderry told the Daily Star Sunday.
"If they want to erase the fact I won X Factor or try to hide it, I don't care.
"Personally I am proud I came from The X Factor. If Simon doesn't feel the same then you'll have to ask him why."
Ward recently hit out at his exclusion from the promo campaign.
He said: "Just seen the new X Factor promo video. Yet again it's like I'm being erased slowly from their history. Pathetic really. Would love to know why?"
Watch the trailer for The X Factor's ninth series, which starts on August 18, below:
