Circle K, 7-Eleven Quietly Overcharge Shoppers, Guardian Finds

A Guardian investigation has found that 7-Eleven and Circle K stores routinely fail to honor advertised prices, charging consumers more at the pump and the register for gas, snacks and other items.

The findings land at a moment when American households are already strained by soaring living costs. The two chains are the biggest convenience-store operators in the United States, and the pricing gaps documented by the Guardian affect the everyday purchases — a pack of snacks, a tank of gas — that define the segment's business model.

The investigation opens with a concrete case. At 1.20am on a mild November night in 2025, Marco Cruz pulled off a four-lane road into the parking lot of a Circle K convenience store in McAllen, Texas, 12 miles north of the US-Mexico border. He was looking for a bedtime snack after a day of visiting family and friends.

Cruz grabbed a pack of beef and jalapeño cheese sticks from the shelf, where they were priced at $3.99. At the counter, the item rang up at $4.19 — a 20-cent difference on a single low-ticket product.

Cruz asked the cashier to charge him the lower shelf price. The employee refused, Cruz said, and threatened to call the police when he grew more insistent.

"All I'm asking you is honor the price," Cruz told the attendant before leaving the store and, later, filing a complaint with the Texas attorney general.

His complaint is not an isolated grievance, according to the Guardian's reporting. The investigation found that such pricing discrepancies recur across both chains, spanning gas pumped at the forecourt and items scanned at the register.

The stakes for consumers are straightforward. Convenience stores trade on speed and proximity, and shoppers rarely cross-check a receipt against a shelf label for a $4 purchase. Multiplied across the volume of transactions the two largest chains in the country handle, small per-item gaps can add up to significant aggregate overcharges — and to a quiet transfer from consumers to retailers at a time of elevated prices elsewhere in the household budget.

There is also a legal dimension. Pricing accuracy at the shelf and the register is regulated at the state level, and Cruz's decision to escalate to the Texas attorney general shows the enforcement channel available to consumers. Whether regulators act on complaints like his, and at what scale, will help determine whether the pricing gaps the Guardian documented remain a cost of convenience or become a liability for the two chains.