Whataburger is celebrating its 75th birthday this week by offering customers 75-cent burgers.

The Texas burger institution said in a recent news release that the offer can be redeemed exclusively online and through its app for the #1 classic hamburger from 11 a.m. to 8 p.m. local time. The offer is limited to one hamburger per customer with a Whataburger rewards account.

"This anniversary is our way of saying thank you. Thank you for your trust, your loyalty, and for letting us be part of your table," Whataburger President and CEO Debbie Stroud said in the news release.

The company debuted the second collection of its limited-edition Whataburger Commemorative Cups ahead of the anniversary on Aug. 5.

The chain operates over 1,100 restaurants in 17 states, particularly in Texas, the S

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