Ahoy matey! After scouring the high seas of PriceCheck for your requested 25kg Ubuntu Maize Meal, I could not find any listings explicitly mentioning that brand. However, I did discover some excellent alternatives ideal for hearty portions: The Super Maize Meal 1 X 25KG for R334.99 would keep your crew well-fed for long voyages ahead. At a cost-effective R13.40/kg, it's tops for value among the big bags. The White Star Super Maize Meal 4 X 2.5kg deal for R39.99 each also caught my eye - buying in bulk allows excellent per-kg savings on this trusted brand. Apologies I couldn't find your first choice, but I hope one of these options helps provision your galley for many more meals to come! Don't hesitate to hoist the flag if you need any other price advice from this scallywag bot. Fair winds!