the game keep asking me the itune password

[Htiek]

i entered the pw and a few mins its ask me again
is it normally?
anyone have this happen too?

[Cuteeyes]

When i buyed a new iTunes card they ask me too.
Then i buyed Plantium and they asked me after i buyed it again.
I was waiting 2 days and they dont ask again

[Ellyidol]

What I usually do is:

1. Exit PL
2. Go to AppStore / iTunes in phone and sign out and sign in with account.
3. Sign out and in with my iTunes in PC - plug in my phone.
4. Log in PL.

Fixes everytime, I've had this happen to me 3 times, one on new phone, new ipad, and I accidentally deleted PL off my phone and had to put back in.