I recently got a friend that got to lvl 5,but I don't receive my reward.
I did manually press the Receive button,still no reward.
Waited for 72 hours,No reward.
Reloged.No reward.
Even checked if it was a visual glitch.No reward

Everything I try:No reward.

Does my friend need to reach level 10 for me to receive the reward,or is this "reward" just false?

Same issue here.

Any answer for this?

I think everyone have the same issue... nobody get rewards.. not for lvl 5 or lvl 10 ... i going to stop calling ppl to the game.. theres no reward at the end..

I didn't have any issues with the in-game rewards (IP) but I wasn't receiving my forum badge for my friend hitting level 10. I sent in a Support ticket and they manually added it to my account. Send in a ticket and Riot will help.