Claiming iii.cl domain previously used with Cloudflare / Vercel

Hi Vercel Team,
I own the domain iii.cl, which is currently deployed on my Vercel account. This domain was previously deployed on Vercel using Cloudflare.
When I try to add it to my current project, Vercel says:
“This domain is linked to another Vercel account. Add a TXT record at _vercel.iii.cl to verify ownership.”
Unfortunately, I cannot add a TXT record at NIC Chile because the interface does not allow me to manage DNS records while the domain is delegated to Vercel nameservers.
I would like to claim this domain for my current Vercel project. Can you please manually verify or release it so I can use it?
Thank you very much