MPs are to review whether students applying to universities are being offered unconditional places in order to secure their fees.
The number of unconditional offers made by universities rose more than 17-fold in five years.
Unconditional offers mean students do not have to worry about the grades they get in their A-levels.
Robert Halfon, Conservative chair of the Education Select Committee, said he was "very concerned" about the issue.
"It's one of the reasons why our committee is doing a value-for-money inquiry into universities and higher education.
"I think part of it is unfortunately just to do with resources and funding.