Pick n Pay Glencurve - what a shame. Selling perishables 3 weeks after best before date

What a shame !!! Went to buy eggs on 11 January 2023 from Pick n Pay Glen Curve. House brand eggs on the shelf with BB date of 21 December and an expiry date of 19 January 2023.Why would anyone want to buy anything that is 3 weeks past best before date ?? Cashier adamant that it was okay. That may work for her, but definitely not for me - and as a result neither that branch of Paick n Pay.