How to Delete Domain Registration?

I would like to delete my domain registration w/DH. I don’t want to transfer it, and I don’t want to wait for it to expire in 6 months. I have not been able to locate a way to do this either within the DH panel, in the Support Forums, or in the Support Wiki.

I have already deleted the hosting.

Can I delete the domain registration, or do I have to wait for it to expire?

Thanks in advance.

I figured out I just have to let it expire. Thanks to DH chat for their instant service.