Mr Price bad online delivery services

Order ********** 66770 was put through on the 27 february 2019 , and is already at the store ,

Order ********** 66950 was put through on the 27th february 2019 aswell! But Mr price online says that the order along with order ********** 67531 will only be delivered by Friday ... Why do the delivery dates differ , can't everything be delivered on the same day it gets put though and it's been paid for , I feel very annoyed why one order gets delivered early while other two orders are going to be delivered late by Friday ,