Customer created Multiple time while login as website user

ERPNext: v13.22.1 (version-13)
Frappe Framework: v13.22.2 (version-13)

Multiple times auto customers are created while the website user login to submit an Issue Ticket.

I’ve experienced this before, I was able to fix it by ensuring the user email address is the same as the primary email address in the contact where the user is linked.