Did the piece run online? If they used your work without permission (i.e., without payment), you can assert copyright infringement and damages up to $150,000 per incident. It'll make their A/P and legal dept.'s pay attention. You won't get $150K but I bet you'll get paid a lot sooner than 2025.
Yes, I wrote several features for the site and was (supposed to be) paid on a weekly basis for my work. Would you recommend seeking a pro-bono attorney, or at least on contingency? I've never dealt with this, surprisingly.