Courier IT - Poor service

I hate to wait like a fool for people who don't show up with my package....I was supposed to get a phone since Saturday as the date was issued for Saturday but still I haven't received my parcel or package and they said it been handed to the courier it as I was supposed to get them on Saturday but they changed the date to today but still I don't have my package with me worse part I had to skip my day at work to wait for useless delivery that hasn't show up until now