New members to be eligible to receive an invitation need to subscribe at Tandem's official website at https://tandeminternational.waw.pl
The invitations are sent via email, a secure, direct and genuine channel of communication between members and the official and original Tandem meetings.
We also recommend you to join our Telegram channel at https://t.me/tandemwarsawinternational were you will be able to receive Tandem's posts in real time without social media censorship. Consider that we cannot trust traffic from social media groups and pages and we cannot count on a reliable distribution of our content there and we cannot trust their statistics. Keep in mind that on social media your profile is undistinguishable from a fake one and platform generated fake traffic, fraudster's generated profiles and traffic, spammers activities have become far more abundant than genuine member's ones. We are therefore unable to keep a connection with our members on social media and even if we are keeping a minimal presence for all practical purposes we have actually dumped them all. Feel also free to follow our example :)