Integrated Child Seat Belt problems of the 2004 Kia Motor Spectra

Evenflo triumph advance¿ lx convertible fails to perform basic carseat functions. Actual carseat damages itself via razor sharp plastic openings where the latch system strap or vehicle restraint strap goes through the seat. We have been physically cut on this plastic along with the latch strap being frayed and cut beyond safe use. We have discontinued using the latch system but are concerned that the vehicle's safety restraint strap will also be frayed and become unsafe along with permanent damage to our vehicle. This plastic issues has resulted in gross safety issues on a constant basis. Child can easily get out of the carseat regardless of strap tension every single use. The chest clip slips up and down too easily and child can simply, with 1 finger, slide the chest clip the to 5 point harness, wiggle arms and legs out and get into a standing position without much difficulty. No action has been taken by the manufacturer.