You can contact the IRS at their tax refund line at [phone number removed].
It'll bring you to some automated response.
They'll ask you for information, and once you type it in, they'll say it was lowered and give you a list of reasons why it was lowered.
Have your:
1) SSN
2) Filing status (single, married, etc...)
3) Fed tax amount (the amount shown on your turbo tax, not the amount you received)
