Hearthstone items purchased on a mobile device were not delivered in the game.

What to do if the verification code received via SMS doesn't work

How to resolve the "Shop Closed" error in Hearthstone

Troubleshooting for Hearthstone connection issues on mobile devices.

Minimum OS requirements for the Battle.net Mobile App

Hearthstone Patch Not Available on Mobile Platform

What to do if you get a "Something went wrong" error when logging in to the Battle.net Mobile App

A phone number can only be linked to one free game

Troubleshooting steps for low performance on mobile devices on phones and tablets

Troubleshooting steps for problems installing or patching Hearthstone on mobile devices