i invited 4 managers and didn't recieve the 50 points per invite??
If you invited your friends and didn't get your reward it could be because of the following reasons.
- New user has to sign up via invitation link and on same session (if user installs app, closes it and later open it an sign up, it won't work, he needs to click link again and only after create the account)
- Invited user has to create a new account and not joining league with an existing one
- There's a maximum of 10 rewards, so all invites sent after that won't give any reward
- New user must create his/her account on the same OSM version as the inviter (i.e. World for World, Dutch for Dutch versions).