URL: https://startrack.com.au/#SURREY%20HILLS,VIC,3127

Browser / Version: Firefox 85.0
Operating System: Windows 10
Tested Another Browser: Yes Chrome

Problem type: Site is not usable
Description: Buttons or links not working
Steps to Reproduce:
Click on "Book a pickup"
Fill the first page of the form.

Select Type: "Tracking Number (consignment)"
tracking number: WVWZ50009322
phone number: 0412345678
Company Name: None
Contact Name: John Smith
email address: whatever@itis.com
Click on "I am not a robot"

Go to the next page:
Company Name: None
Contact Name: John Smith
Phone Number: 0412345678
Address: 1 Warrigal Road
in the line below: start typing "Surrey" this will complete with "SURREY HILLS, VIC 3127"

this turns red and the message "Enter recipient's suburb or postcode" is displayed. You can't proceed further as it doesn't see you've entered an email address.

Works fine in Chrome

View the screenshot

From webcompat.com with ❤️