DHL - Worst delivery experience in 10 years

I had requested delivery on Friday so that my girlfriend could take the day off to pick up the package. She had called about it too and was informed that it would be delivered on that day.

On Friday, she called them again and was told that it would indeed be delivered that day. Since I noticed that the website tracking information did not reflect this, I called them and was told that it would not be delivered that day after all and that they had already attempted delivery before that time when nobody was at home.

We were mis-informed four times in a row and we wasted a whole day waiting for this package