Why does my AirPod charging case not work

I recently got my AirPods (2nd gen) a little earlier this year. My AirPods case no longer seems to work. I haven't dropped the case or thrown it around, I've kept it in good care. I'm wondering if it is a manufacturing fault. The case doesn't light up anymore with the flashing light. I've tried to charge the case but it no longer works I think. I'm really unsure why. I still have the case, it is in good condition, however it just doesn't charge my AirPods, which I think is the main issue.

Is there a way to fix this. Does Apple have certain policies on manufacturing faults? Just curious, as I really did love to use my AirPods. It's my first time I've had and used wireless ear buds and they were amazing.

Kind regards

Stefan