Poor service second time round.

This is now the second time that I have the same bad experience with the Courier guy. I wish I could stop using them but the place I order from use their services. They do not deliver when promised. I make sure that I am at home, I cancel plans just to be there so that there is no issue with the delivery process. They say that they try to call. I even called them the morning of when they were supposed to deliver to make sure that they have all of my correct details. They state that they attempt delivery but nothing just ever comes.