To file a complaint for the queries you face, you can either call 801-401-9000 or visit the official website and make a complaint through the online process. The online method through which you can call them is:
• Reach the webpage of Frontier Airlines.
• Then, scroll down to the need help section and choose the customer support option.
• This will forward you to the contact page.
• On this page, scroll once again and search for the complaint option. Tap on the file icon and get on to the complaint forms.
• Fill out the form. Enter the required details, such as trip details, passenger details, and flight details. Also, explain your query in a possible detailed manner.
• You will receive a complaint ticket number in your email. Refer to it for further requirements.
If you have more queries, so then speak to Frontier airline real person or you can visit the our website… https://www.cheapflightinfo.com/travel/flight/does-frontier-airlines-have-a-chat-option