If you run into issues when you try to contact support through chat, try these troubleshooting steps.

Buying Battle.net Balance as a gift

Information on removing parental controls.

Information on Battle.net Regions

Steps to help you find a missing ticket.

Steps to take if you believe that your copyrighted work has been copied or used in a manner that constitutes copyright infringement.

Information about this error when redeeming a code on your Battle.net account

Troubleshooting steps for PayU credit card and Pix payment issues

What to do if you are short on Balance to complete a purchase

Information on error BLZBNTBNA000009C7