Bad service

I've been waiting for my package for the last month only for the package to say its on it way to me then gets returned right back to the depot at the end of the day. This has been happening since the 16th of December everyday it goes out and then goes right back I've called and all they say is they are delivery it and that they just never finished their rounds when I call they are rude and sarcastic one lady even put down the phone in my face I've had people patronize me and talk to me like I'm an idiot and this is utterly frustrating to have to deal with a company that seems to have no clue what they doing.