3 June–27 July 2025: DON DON DONKI Singapore: Kakubin Highball Stamp Card Deal is Back by Popular Demand Promotion by JR 3/Jun/2025 DON DON DONKI Singapore’s popular KAKU HI Highball Stamp Card promotion is back. Enjoy 10 highballs for just $58 nett and get a free jigger and mega-sized upgrade on your 10th drink. Available till 30 June 2025 with redemption up to 27 July. Read more
