I can't buy anything in Plants vs. Zombies 2

Thanks for the info, that's odd then. As eu1yvf0lcid9​ suggests maybe try to revert your language to English and let us know if that fixes the issue!

I have same problem then I changed the phone language from my mother tongue to english, you can try

My account has reached adult status and I am 20 years old. Is there any solution?

Hey prosphy​ , do you have an underage account by any chance?