You can do a number of things to streamline your call to Allegiant Air customer support, including:

• Make sure you have the necessary papers on hand before contacting. Flight numbers, your passport (if travelling abroad), the credit or debit card you used to pay for your ticket, billing bills, your MyAllegiant Rewards number, baggage claim checks, and any correspondence pertaining to your issue are all examples of things you should bring with you.
• Have a method for taking notes while you are speaking. This may be useful if you need to write down a confirmation or cancellation number or if you need to escalate your problem in the future.

Make sure you are in front of your computer if you are calling Allegiant Air customer service for website technical help so that you can troubleshoot together.