G'day lizeth_m,
We see you have a question about your AirPods, and you've already checked out the resource titled If your AirPods won’t charge.
It sounds like you might be referring to this repair program: AirPods Pro Service Program for Sound Issues
That program covers AirPods Pro specifically and for audio issues, so while it won't apply to yours, we're happy to see how we can help out. Did you already cover all of the steps suggested in the related article we posted above?
If you have, including cleaning the AirPods and the case and the connectors, it might help to reset the AirPods next. That can help with a number of issues, including charging. Check out this link for the steps: How to reset your AirPods and AirPods Pro
Let us know how it goes. Have a good one.