Bad customer service

They came to drop off my parcel and had the wrong ID number on it. I phoned the company that send the parcel and they don't even have a customer with that ID number. Later that day someone from RAM phoned me to confirm my ID number. She said they will deliver my parcel on Monday. It is Wednesday already and still, they are telling me they are waiting for the correct ID number. But they have it as the company phoned them (with me on the other phone) and confirmed that they have the correct ID number. It is almost a week later and still, they cannot send me my parcel because they do not know what is happening. Like really????