Thom’s latest single Earthquake, set to be released on November 27, failed to make the BBC radio station’s playlist.
The visibly upset singer took to her Facebook account and posted a video “so people realise how much it hurts because I apparently can do no right.”
“I am done with this industry,” Thom continued.
“There’s literally no reason why they shouldn’t playlist that song. It’s perfect for their format.”
The video continues for two and a half minutes, with the singer aiming some expletives at both Radio 2 and Bauer Media, who also turned down the track.
Born in Banff, Aberdeenshire, she rose to fame after her track I Wish I Was a Punk Rocker (With Flowers in My Hair) reached the number 1 spot in 2006.
Her online rant has since been ridiculed by comedian Limmy on Vine.