I have a client whose daughter in 2020 filed her own return and received $1200 & $600 stumulus because she was working.  In 2021 she received a $1400 check but was not working and was a dependant of her parents and they filed for her stimulus.  The IRS sent a notice disallowing her stimulus on the parents return.  She is age 22 and a full time student in 2021.  Is this disallowance correct and if not ow do I go about correcting it?