Broken before ever used. - Mission Crossbows Out Lighted Nock Pack

Fresh out of the package, activated one of the lighted knocks to test it out. When pulling back on the clear plastic knock to turn off the light, it entirely came out of the arrow shaft and the light remained on. Unable to turn light off. Very disappointed for such a high cost item at $75 for 3 arrows. Reached out to customer service via two different email routes over one week and have yet to hear a response. Will update review if I receive a resolution soon.