ABSA vs Lotto winnings

Mother in law played lotto through the ABSA app. She had winnings for 3 times in a row which ABSA paid less than the winning amount. How is this possible? 25.02.2026, she wins R49.20 but only get R11.10 winning paid out. 28.02.2026 she wins R45.50 but get paid R36.50. on 04.03.2026 she wins R45.50 but only get paid R6.70. This is not acceptable. Where is the rest of the winnings going to and why is this happening? Can ABSA please explain.