(Corrects spelling of "Discover" in paragraph 1)
July 22 (Reuters) - Credit card issuer Discover Financial Services Inc reported a 7 percent rise in quarterly profit as customers spent more using credit cards in a recovering U.S. economy.
Net income rose to $644 million, or $1.35 per share, from $602 million, or $1.20 per share, a year earlier.
Revenue, net of interest expense, rose 6.4 percent to $2.17 billion. (Reporting by Avik Das in Bangalore; Editing by Joyjeet Das)