Sadly, you will not find an invite if you contact Riseup support, by support ticket or other means. Though you may have no malicious intent, the fact of the matter is we cannot prove anyone who is who they say they are on the Internet. Because of this, we rely on our users to personally invite people they know.
With that said, it would be good to remember that Riseup is a service for activists (at least those involved in liberatory social change). The best way to find yourself an invite then is to get involved in activism. Inevitably, you will find Riseup users there. Having worked with you, those users should have no problem personally vouching for you and giving you an invite. Plus you will be making the world a better place!
With that said, it would be good to remember that Riseup is a service for activists (at least those involved in liberatory social change). The best way to find yourself an invite then is to get involved in activism. Inevitably, you will find Riseup users there. Having worked with you, those users should have no problem personally vouching for you and giving you an invite. Plus you will be making the world a better place!