Why was I charged $45 for "TurboTax Premium Service"? Did they force Audit Defense on me?

I purchased my copy of Turbo Tax Deluxe at Costco if that changes anything. Before I submitted it said something like "File with Audit Defense for $45" but I did not click that button, I clicked on the only other button to advance me to the next page. Yet at the end I get this vague $45 fee for Premium. I restarted the program several times and restarted the process with no idea how to remove this fee. I guess I'll use H&R Block next year.