First check to see if the
IRS reduced your refund. If they did then they will send a letter
of explanation in 2 weeks.
https://www.irs.gov/Refunds
https://www.irs.gov/taxtopics/tc203.html
Then if the IRS sent
it all AND you asked to have the TT fees withheld from your refund then …. the processing bank withheld more than expected then
they will send a letter of explanation in 2 weeks.