Poor online customer service

Every time I order online my parcel is always delayed and not delivered on time. This time around it’s worse because I ordered stuff for my birthday weekend which was supposed to have been delivered between Wednesday and Friday but I still do not have my stuff. They handed them to courierit who are worse when it comes to service delivery and reliability!! No communication whatsoever and now I have to wait for a new week to hope that they will deliver. I used a specific address because I would be available on scheduled delivery date, now everything is a mess because I am unavailable from next week! What is this adidas???