As a full-time travel writer, I spend more time in rental cars than I do in my own living room. I know the protocols, the fine print, and how to spot a service failure. But even with my years of experience, nothing had prepared me for the call I received three weeks after returning a rental to Alamo at Edmonton International Airport.

The bill: $31,077.94. The accusation: I had put diesel into a gasoline engine. It’s a devastating claim because “misfuelling” is often excluded from standard insurance coverage, leaving the renter on the hook for a total engine replacement.

There were two glaring problems with Alamo’s theory. First, I had filled up just down the street from the airport and kept my receipt, which clearly stated “Regular Grade Gasoline.”

Second — and more importantly — it was physically impossible. The vehicle I rented, a brand-new Nissan Armada, is designed with a fuel filler neck that prevents a diesel nozzle from being inserted. Unless I had used a hammer and a funnel to force fuel into the tank, their claim defied the laws of physics. But here’s the kicker: The pump I used didn’t even have a diesel nozzle.

Yet, despite the impossibility, they pursued me for five figures.

For nearly ten weeks, I was left under the shadow of a life-altering bill for damage I didn’t cause. The stress was immediate. How do you prove your innocence nearly a month after the fact?

I started by demanding transparency. If you find yourself in this position, demand the data. I emailed the claim dispute employee six non-negotiable questions they needed to answer to prove the damage was caused by me:

1. The odometer readings (In and Out).

2. The mileage at the moment it arrived at a repair dealership.

3. Fuel levels at departure and return.

4. Tank capacity versus fuel added.

5. Documentation of any refueling the company performed.

6. The exact timeline between the car’s return and its tow.

I reminded them that the burden of proof was theirs. None came, only escalating pressure to pay.

Then things shifted. A CBC Go Public investigation aired on April 20, detailing a nearly identical “misfuelling” case tied to the same company and location.

I immediately emailed Enterprise’s CEO, Chrissy Taylor, outlining the details of my case and that this “mistake” looked suspiciously like a systemic pattern. Within hours of that email — and the CBC story breaking — the $31K claim vanished. Enterprise decided they weren’t going to pursue this claim against me after all and left a simple, “We certainly regret any inconvenience this matter may have caused,” apology.

The timing of their retreat is what should worry every traveler. If this can happen to someone who travels for a living, it can happen to anyone. If there’s one lesson here, it’s this: protect yourself from becoming a revenue stream for a car rental company by following these suggestions:

The 360-Degree Video: Take a video of the car at the drop-off lot, including the dashboard showing the fuel gauge and odometer.

Photograph the Pump: Take a photo showing the grade of gas you used and, crucially, that the pump doesn’t even offer diesel (or that the nozzles are clearly distinct).

Demand the Data: If they hit you with a claim, demand the odometer readings from the moment you returned it until it reached a mechanic. If those numbers don’t match, the car was driven after you left.

Know Your Vehicle: Many new cars have “mis-fueling” inhibitors. If you’re accused of putting diesel in a gas car, check the specs. If the nozzle shouldn’t fit, the claim shouldn’t stand.

Don’t Fold Under Pressure: They count on you being too intimidated to fight a five-figure bill.

Go Straight to the Top: Don’t waste time with local billing departments. Escalate to the executive office and mention current news reports if applicable. Or reach out to teams like CBC’s Go Public or Anne Drewa at Global TV’s Consumer Matters.

Alamo acknowledged the breakdown, reviewed the incident internally, and addressed it with staff. They accepted responsibility for the error and made a clear effort to rebuild trust and retain my business.

If you’ve experienced a travel scam or a similar situation at YEG or anywhere else, I want to hear from you. Please email me at [email protected] to share your story.

I won my battle, but the emotional toll of being railroaded for $31,000 is a shadow that shouldn’t follow anyone home from vacation. Because the trip should end at the airport — not weeks later, with a bill you didn’t earn.