Nice try Wiley, but no, I'm not going to fill in that form with oodles of personal data that you seem to need (why?) before I can download my certificate.
I'm just going to have to try to manage without a certificate to celebrate my achievement of publishing one of the top 10% of papers in a single medium-tier journal in a 2 year period (if that's even true).
It'll be tough, for sure, but I'll do my best to get by.
"The World Institute of Pain" sounds a bit Torment Nexus-ey tbh