During the 17th over of Australia's chase, Bosch executed a well-directed slower ball at Ben Dwarshuis. The batter was well through the shot by the time the ball arrived, which clattered into the stumps.
Pleased with his skill, Bosch pointed the way to the players' dugout. In doing so, Bosch was found to have breached Article 2.5 of the ICC Code of Conduct, which states that "using language, actions or gestures which disparage or which could provoke an aggressive reaction from a batter upon his/her dismissal during an international match".
Bosch admitted to the offence - his first on the international stage - and accepted the sanction.
He ended the match with 3/20, helping South Africa to a 53-run win to level the three-match series. Earlier, Dewald Brevis struck a record-breaking 125 off just 56 balls to get the visitors to a hefty total of 218/7.
Proteas captain Temba Bavuma spent valuable time in the middle ahead of the Test series in India after scoring a fifty in South Africa A's record run-chase against India A in Bengaluru.
India T20 International captain Suryakumar Yadav is happy with where his team is at just a couple of months before the start of the 2026 ICC Men's T20 World Cup.
Australia head coach Joe Schmidt has asked for patience and for fans to trust the process after they fell to a surprise 19-26 loss to Italy in Udine on Saturday.
The Proteas suffered a calamitous batting collapse as Pakistan claimed a seven-wicket win in the third and final ODI in Faisalabad on Saturday and with it a 2-1 series victory.
