Custom Image on free tier?

Summary:

I'm trying to import a custom (qcow2) image from an object storage bucket. It tells me "You have reached the maximum quota allowed for custom-image-count in ocid1.tenancy.oc1...".

I don't think I have any other custom images, so is the limit 0? Are custom images not available to free tier users? Do I need to submit a limit request?

Thanks for ay assistance on this and let me know if I can provide any further info.