Cynthia Kissner and Leonard Werner, from Florida, took issue with fact they were charged the full amount for a Quarter Pounder when they asked for no cheese.

According to a class-action lawsuit filed in the federal court, McDonald’s used to sell four types of Quarter Pounders and the ones without cheese were up to 90 cents cheaper, the Miami Herald reported.

The lawsuit claims these burgers disappeared and were replaced with the Quarter Pounder with Cheese and Double Quarter Pounder with Cheese.

View photos McDonald’s customers in the US are suing the fast food company for $6.5 million because they don’t want cheese on their burgers. Photo: Getty More

But, “customers have been forced, and continue to be overcharged for these products, by being forced to pay for two slices of cheese, which they do not want, order, or receive, to be able to purchase their desired product,” the lawsuit claims.

They argued McDonald’s charges less for a hamburger than it does for a cheeseburger.

“McDonald’s is being unjustly enriched by these practices because it receives payment for cheese it does not deliver to its customers,” the lawsuit claimed.

According to the suit, Ms Kissner and Mr Werner “have suffered injury as a result of their purchases because they were overcharged”.

A McDonald’s spokesperson told USA Today the company does “not believe the claims in this lawsuit have legal merit”.