When requesting Free lives from your teammates, you can receive a maximum of 5 lives from them in one request. You can make life requests in the team chat every 4 hours. However, once you've accumulated 10 Free lives, you will not be able to request more.

You can store your Free lives and use them when you need them.

To check how many Free lives you have, tap the heart-shaped Live icon in the top-left corner of the main game screen to open the Inbox tab. All lives that you received from your teammates are stored there.