Be sure you are entering just the amount of your Federal refund when checking. Do not adjust for state, nor for any TT fees coming out of it.
However, the Where's My Refund site has been erratic and unreliable. But if TT told you that the IRS Accepted your efiling for processing, then the government has it. (Approved is a later step, but TT receives no further updates once a return is Accepted.) Unfortunately, contacting the IRS will not speed things up. Lots of other folks are still waiting, so please continue to be patient. Also see: