Subway is facing a scandalous $5 million lawsuit after two customers from the Bay Area in California claimed the sandwich company’s tuna was fake.

The two plaintiffs, who were identified as Karen Dhanowa and Nilima Amin, filed the lawsuit in the U.S. District Court for the Northern District of California, The Washington Post reports.

In the lawsuit, the plaintiffs claim they “were tricked into buying food items that wholly lacked the ingredients they reasonably thought they were purchasing” due to Subway’s packaging, labeling, and advertising.

If they would have known about the ingredients used in the tuna, the plaintiffs insist they would have either paid less or not have purchased the product.

The suit claims “independent testing” was been done and confirmed “the filling in the products has no scintilla of tuna at all.”

Instead, the court documents claim Subway’s tuna is “made from a mixture of various concoctions that do not constitute tuna, yet have been blended together by defendants to imitate the appearance of tuna.”

However, a Subway rep has denied the fake tuna allegations and claimed the accusations were “baseless” and “frivolous,” the New York Post reports.

“There simply is no truth to the allegations in the complaint that was filed in California,” a spokesperson said in a statement.

“Subway delivers 100% cooked tuna to its restaurants, which is mixed with mayonnaise and used in freshly made sandwiches, wraps, and salads that are served to and enjoyed by our guests.”

The plaintiffs are asking a judge to allow them to file a class-action lawsuit for compensation for other customers and are seeking attorney fees and punitive damages.

The plaintiffs also want Subway to stop advertising the product as tuna fish sandwiches and turn over the profits made from the mislabeling of the product.

Subway Sandwich
A Subway sandwich is seen in a restaurant.  Joe Raedle/Getty Images