For a large part of South Africa, Innings DRS was not available in the 3rd T20I
The India cricket team defeated South Africa by 106 runs in the third T20I to level the series. While captain Suryakumar Yadav scored his fourth T20I century, spinners Ravindra Jadeja and Kuldeep Yadav then got the South African batters into a tangle on the spin-friendly Wanderers pitch. Kuldeep ended up picking up five wickets while Jadeja got two, but he could've gotten a third in a moment that, at the time, looked like one that could decide the match.
The two sets of players had been informed by the umpires that the decision review system had become temporarily unavailable after the seventh over in South Africa's 202-run chase. It was due to a technical glitch from local broadcaster SuperSport.
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Its effect was felt a few minutes later. Jadeja was hit for two sixes by the in-form David Miller, but there was then a loud appeal for being caught behind off the fourth ball. The umpire shook his head, but the Indians seemed quite confident and keen to take the review, only to be reminded by the former that DRS is still unavailable. Jadeja himself was captain at the time, with Suryakumar off the field with an injury, and he could be heard asking the umpire about the DRS.
Replays then showed that there was a clear deflection off Miller's bat before the ball nestled into the gloves of wicketkeeper Jitesh Sharma.