According to the WPBSA (World Professional Billiards and Snooker Association), Selt, 39, was aggressive in his behaviour and was rude and abusive in his language towards a Matchroom senior executive in the presence of an important WST partner.
The world No.33 was charged last October with breaches of the WPBSA Conduct Regulations and his contract with World Snooker.
Selt shouted “oh my God!” when Latvian Artemijs Zizins, 18, fluked a match-ball red in the final frame of their contest and he also told the ref to “shut up” amid a back-stage commotion.
MATTHEW SELT has been handed a three-month suspended ban and slapped with a £21,000 fine for abusive and aggressive behaviour.
This followed incidents that took place several weeks earlier at the Saudi Arabia Snooker Masters in Riyadh – the first ranking event to be held in the Kingdom.