On Friday, Republican lawmakers called for an investigation into an Obamacare contractor that reportedly paid workers to do nothing. 

As Breitbart News reported Wednesday, British company Serco received $1.25 billion in taxpayer money to process Obamacare applications. However, according to a whistleblower who spoke with KMOV-TV, the company’s employees were “told to sit at their computers and hit the refresh button every 10 minutes” and did no work.

Sens. Lamar Alexander (R-TN) and Roy Blunt (R-MO) sent a letter to the Centers for Medicare and Medicaid Services Administrator Marilyn Tavenner seeking answers. Reps. Blaine Luetkemeyer (R-MO), Sam Graves (R-MO), Vicky Hartzler (R-MO), Billy Long (R-MO), Ann Wagner (R-MO), and Jason Smith (R-MO) also wrote the Department of Health and Human Services (HHS) stating that it is “imperative” that Serco be investigated.

Lawmakers have asked Tavenner to answer their questions by May 30.