Pathetic courier

UTI Courier (DSV)is honestly a pathetic courier service. Parcel has been out on delivery 13 May but not delivered. Many phone calls etc costing me money. Driver could not find my house. And did not even call me. But all the other courier companies can find my place daily. I was promised it would be delivered this morning. Now once again they are not coming this way. How long should i wait for something i paid for. They are the worst ever!!!!!!!