purchase full craftbook can enable other device

I'm a Chinese player and I bought JJX not long, and before I also bought JJ. I think I was a fans of Pixbits or sandbox game.

Just a moment ago, I purchase full craftbook via my IPHONE, after I will enable it on my IPAD but not been successful.

I click buy button is no response.I click refresh button that OS ask me input accounting password, then told me I'm not a test user?
I also reopen the game and relogin my accounting but problem as before.

Who can help me? Thanks very much.

[TwelveFoot]

You should click the green arrow at the bottom of the shop page, then put in your password.

Make sure you're logging into the same account that you originally used on your iPhone.