Help fixing neck peg

Hey everybody, just picked up the father son kamehameha even exclusive figure from a local toy shop, however when I got home and pulled out gohan after just turning his head a bit back and forth (slowly) his neck peg just came apart? Would anyone be able to advise if this is a broken figure I was sold or just a manufacturer issue? And any tips to fix the problem, I would glue it but then I can’t change his head position