Brits was found to have breached Article 2.8 of the ICC Code of Conduct for Players and Player Support Personnel, which relates to "showing dissent at an Umpire's decision during an International Match."
Rassie van der Dussen and Miller's match-winning unbeaten stand of 131 is the second-highest fourth-wicket partnership in T20Is (only full member sides).
South African batter Rassie van der Dussen credited the experience of playing in the Indian Premier League 2022 for Proteas' win in the first T20I match against India.
Top-knocks by Rassie van der Dussen and David Miller led South Africa to a seven-wicket over India, in the first T20I of the five-match series, here at Arun Jaitely Stadium on Thursday.
After winning the toss and opting to bat first, Nepal lost Kiran Kunwar, run out for a duck, in the first over. Anjali Bishowkarma (33) and Ashma Magar (26) made a partnership to weather the new-ball impact.