Several House leaders are livid the Obama administration hasn't provided key documents or information on payments made under Obamacare.

The committee leaders sent letters to the Treasury Department and Department of Health and Human Services seeking documents and information on Obamacare's cost-sharing program.

The lawmakers want to know if the administration paid insurance companies to subsidize cost sharing under the law. Congress did not appropriate any funds to permit such cost sharing, according to a press release.

Lawmakers are concerned that the administration could have been unlawfully misusing the appropriation that is only intended to pay for tax credits to Obamacare enrollees.

The House Energy and Commerce and Ways and Means committees asked the agencies in February for information on whether any payments were made. At the time the cost-sharing program already paid $2.7 billion to insurance companies, the lawmakers said.

But no information has been given on the programs, according to the letters from Republican Reps. Fred Upton of Michigan, Paul Ryan of Wisconsin, Tim Murphy of Pennsylvania and Peter Roskam of Illinois. Upton and Ryan chair the Energy and Commerce Committee and Ways and Means Committee, respectively.

The lawmakers want answers by July 21 and will compel the agencies to turn over any related documents if that deadline is not met.

HHS responded that Secretary Sylvia Burwell already responded to questions concerning the cost-sharing appropriations during a Ways & Means Committee hearing in June.

"As the chairmen are aware, however, the program is the subject of litigation that was filed by their leadership, so we would direct further inquiries to the Department of Justice," spokeswoman Meaghan Smith told the Examiner.

Treasury has also received the letter but refused to comment because it was the subject of litigation.

House leadership sued the Obama administration earlier this year accusing the administration of using IRS money reserved for tax refunds to give to insurance companies.