The IRS is seriously backlogged due to all the extra stimulus filings, as well as a few million unprocessed 2019 returns left over from the COVID shutdown. In addition, the Where's My Refund site has been erratic and unreliable. But if TT told you the IRS Accepted your filing for processing, then the government has it. (Approved is a later step, but TT receives no further updates once Accepted.) Calling the IRS will not help, and the IRS has implored taxpayers not to call them. Lots of other folks are still waiting, so please continue to be patient. Also see:
Why is my tax refund taking so long? The IRS may not tell you, but this report offers clues (msn.com)
There could be a few reason's why your tax refund is lower than expected. Please see the TurboTax FAQ below for more information on refund offsets:
https://ttlc.intuit.com/community/refunds/help/what-is-a-refund-offset/00/26301