No reincarnated chest

I did not get a reincarnated chest

Did you reach level 50?

Yes I did just

I have look in my inventory and nothing

Once you reincarnate you receive a message saying to check your inbox where there's a reward to claim.

No sorry nothing there

You're level 35 not 50.

Do you have to be level 50 to start getting them I thought that you had to reach room 50

It's level 50 not room 50.