Sold goods with a sell by date of the same day I ordered the items

I order the traditional Hot Cross Buns 8s x3 at Pick n Pay Soweto Hyper through Mr D with a sell by date of 19 April 2025 meaning that these items need to be consumed by the end of the day not tomorrow, not Monday nor Tuesday. So whoever packed the order just wanted to move these buns with my order not thinking I would check to order. This store needs to understand what sell by date mean cause these items should have been on mark down rather than sold online just because I'm not there doesn't mean I'm not a valuable customer.