Could be great if people reunited and created a groupal account with some of them in the countries to which is send to send these things back to us.

This is something I never did to a big scale but to a little one with family and friends.

I am the one with the account at the service and receive the things, then I send them back or, if their address is allowed, I send the things directly to them.

They just pay me what it costs at all.