I had the same problem.
I replied on the email from one of the splunk certification team ( one with the "Splunk: it Pays to be certified) and explained the problem. They fixed it within a few hours.
Same problem here. Did you ever figure it out? Strange that there is no where in the Splunk site to access your certifications and the link they sent me returns a http 404 error.
Hi,
don´t know if this apply to you, but I am just aware of the option to dowload it from the partner portal. If you got a partner log in.
https://www.splunk.com/view/partner-login/SP-CAAAHFT
Kind Regards
Thanks but I don't have a partner login.