For this issue you'll want to contact our billing/account services department. I apologize I couldn't handle it myself, however they have the tools that can help you out!
The Billing team is available everyday, between 8AM - 8PM Pacific Time, at 1 (800) 592-5499 || 1 (800) 59-BLIZZ
* Players in Australia should call 1-800-041-378 * Players in Singapore should call 800-2549-9273 * Players in Chile should call 1230-020-5554 * Players in Mexico should call 001-888-578-7628 * Players in Argentina should call 0800-333-0778 * All other international players should call: (949) 955-0283