Wrotten eggs

I bought eggs at pick n pay Ilanga Mall Nelspruit on the 15 of November and as a busy single mother I did not unpack and checked everything .Today on the 22 of November 2019 to my surprise all eggs are rotten the smell is unberable my question is can I still return them because i dont have the till slip but do have the smart shopper card that i swipped on that day including my bank statement that proves that i did but at pick n pay.please assist