I received a message telling me to contact iTunes when trying to purchase Gems. What should I do?

If you receive a message when trying to purchase gems or cash telling you to contact Apple, it means there has been a problem with your purchase.

In-game purchases are made through Apple, using your iTunes account. As Apple deals with all in-game purchases on iOS, we are unfortunately unable to help you rectify this problem and Apple will need to be contacted for further information.

For help, follow this link to go to the Apple support page.