The Consumer Financial Protection Bureau celebrated its fourth birthday on Tuesday. Among the individuals on hand to cheer the occasion were the lawmakers who authored the Dodd-Frank Act, which created the CFPB.

Instead of just cake and party hats, bureau officials gave a rundown of their accomplishments since coming into existence on July 21, 2011. Two numbers are especially noteworthy, including:

— $10.1 billion: That’s the amount of consumer relief the CFPB said it generated stemming from what the agency described as “illegal practices in the financial marketplace.”

— 650,000: That’s the volume of complaints the bureau indicated it has received associated with issues with financial products and services.

“We were created to stand up for consumers and make sure everyone is treated fairly,” the CFPB’s Zixta Martinez wrote in a blog post highlighting the CFPB’s birthday.

“To us, our work is about hearing the struggles you face in the financial marketplace and empowering you to make the best financial decisions,” Martinez continued. “It’s also about rooting out bad actors or bad practices that cause harm or stand between you and your financial goals.”

While former Congressional members, Sen. Chris Dodd and Rep. Barney Frank, came back to Washington, D.C. to be a part of celebratory festivities, some current lawmakers on Capitol Hill do not have much to cheer when it comes to the CFPB’s work, especially Rep. Jeb Hensarling, a Texas Republican who is chairman of the House Financial Services Committee.

“Arguably, the CFPB is the single most powerful and least accountable federal agency in our nation’s history,” Hensarling said during remarks on Tuesday during an event hosted by the American Enterprise Institute.

“The CFPB, or more specifically its one unelected director, has almost absolute discretionary power to find any consumer credit product ‘unfair’ or ‘abusive’ and, thus, functionally outlaw it,” Hensarling continued.

“When it comes to credit cards, auto loans and mortgages of hardworking taxpayers, the CFPB has unbridled power not only to make them less available and more expensive, but to absolutely take them away,” he went on to say.