Lawmakers are probing how Equifax Inc. EFX, +1.87%,  Experian PLC EXPN, +0.31% and TransUnion TRU, +0.07%  handled consumer complaints about errors on their credit reports during the pandemic.

Democrats on the House Select Subcommittee on the Coronavirus Crisis informed the companies of the probe Wednesday morning, according to letters viewed by The Wall Street Journal.

In the letters, the lawmakers said payment-deferment programs and an increase in identity theft during the pandemic created new ways for errors to get added onto credit reports. The letters, signed by South Carolina Democrat James Clyburn, the subcommittee’s chairman, ask the companies to provide documents about how they handle responses to complaints.

Representatives for Equifax, Experian and TransUnion didn’t immediately comment.

An expanded version of this story appears on WSJ.com.

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