This loop cycle can be broken by setting up a new automation rule. Go to Admin > Workflows > Automations > Ticket creation > New rule:
Conditions:
Choose Match ALL of the below
In tickets > If Requester email > is > support@domain.com (enter the customer's support email address here)
In tickets > If Subject or Description > contains > Ticket Received
Actions:
Skip New ticket email notifications
Mark as Spam