I am new to this and was wondering if anyone else has had a quality issue with their infababy car seat. Ours was bought as part of their travel system, of which I have currently had no more issues with so far. However after three months we have noticed a crack in the part of the car seat which holds the adult seat belt in place, on the side of the seat. Has anyone else had this problem as infababy are not wanting to replace/repair. Tia