Some universities are recruiting students with unconditional offers during the application process, says the university admissions service Ucas.
They are telling students that original A-level grade requirements will be dropped completely if they put the university down as their first choice.
It comes as new Ucas figures show one-third of applicants aged 18 received an unconditional offer last year.
Education Secretary Damian Hinds said the proportion was "disturbing".
He added: "The systematic use of unconditional offers is not in the…