Your refund may be less than expected due to a federal offset or an adjustment done by the IRS. You may want to call the IRS to confirm the amount that was deposited. You can reach the IRS at 1-800-829-1040 Mon-Fri 7a-7p local time.
See link below that provides common reasons why your return may be less than expected: https://ttlc.intuit.com/questions/1894477
