You can have up to 20 lives from friends in the mailbox. I just had another 4 taken away. This is BS asking Candy Crush friends to give you lives, then you go to play them, and they are gone.
These are lives that have not been played yet. I always play all of the mailbox lives before I log out.. they disappear before I play them. Just happened again!!!!!!!!!!!!!!!!!!
I just played through facebook and had 10 lives built up. Lost them ALL!!!!! Ridiculous!! This has happened at least 10 times in the last few days. What is the point of asking for lives if you just lose them?? When I get an error, it usually says 'something went wrong', then all the lives are lost.