A spokesperson for Britain's Home Office said international students without results can request a letter of confirmation from their sponsor or return to their home country and apply for another student visa.
The University of Edinburgh said 27% of final year students had not received their degree at the time of graduation.
International students pay much more, providing a vital source of income.
Research published by Universities UK International in May found the 2021/22 intake of international students contributed 41.9 billion pounds to the UK economy.
"Every year, universities in the UK are depending more and more on the finances of international students," said Hendricks.
Persons:
Maja Smiejkowska, Amelia Dias, Dias, Anna Hendricks, Ailsa Watt, Watt, Gillian Keegan, Hendricks, Kylie MacLellan, Jan Harvey
Organizations:
London College of Communication, University of the Arts London, REUTERS, University of Edinburgh, Colleges Employers Association, University and College Union, National Union of Students, University of Cambridge, University, Scottish, International, British Council, Times Higher, Higher Education Statistics Agency, Universities UK International, Thomson
Locations:
London, Britain, Edinburgh, British, Florida, Spanish, Shanghai