Vodacom Rica on app and online doesnt work

I purchased an eSIM online and received an email with instructions to activate it on the RICA site, but both the link and the app keep failing with a 400 error. I called the call center, and they said you can't RICA online or through the app, even though the option is available in the app but doesn't work. The link in the email also fails after I enter my details. It's the worst service, and the staff are clueless and unable to assist.