Worst delivery company!!!!

A delivery to me was made, but not me. It was done at 11'o clock at night. After calling them, stating I haven't received my package, I was told to give them 7 days to respond. After 7 days, still no news. Called them again, and I was told they will have an answer for me before 1 pm the same day, because it will be escalated. A week later, still no response. Called again, told me that it is still not resolved and then just put the phone down. Absolutely pathetic service. This worries me, because I know that there will be future deliveries by them.