Generally, it is not required to make an appointment to visit an Optus Shop. Customers are welcome to walk in during operating hours to receive assistance with various services, such as mobile plans, device purchases, or technical support. However, depending on the specific location and varying customer demand, some Optus Shops may recommend scheduling an appointment for certain services, especially if you are looking for in-depth assistance or if you need to complete a specific transaction that may require more time. To ensure you have the most current information regarding appointments or available services at your local Optus Shop, it is advisable to check the official Optus website for any updates or specific guidelines related to your area.