Personal store forget pin

Completely new to the game and forgot my pin to personal shop. Was told to put a ticket in still don't know where I need to go to do so.

Hover over "Support" at the top of the page, then click "Contact Us", then click "Contact Us Now", and you will either be sent to the support site, or you'll be prompted to log in first. Once you get to the support site, click "Submit a report" at the top right, and in the drop down select "Item Shop Password Resent (2nd Password)".