Unprofessional Siding

This is continued interesting siding installation.  This siding is not abutted correctly to the roof trim.  The corner piece is open at the top and the siding members fit into it erratically.  Beside the under the roof trim, no "J" track was installed to hold the siding into place and provide water proofing.  Every time it rains, water is cascading down behind the siding and into the interior behind the corner of the house.  The owner reports how audible it is, not unlike a recording of a babbling brook or waterfall.