Students across the UK are being visited by debt collectors as landlords attempt to claw back cash withheld in rent strikes.
Bristol University is the first to make the move, writing to striking students this week to warn them that they 14 days to pay.
Students have participated in rent strikes at more than 50 universities.
Bristol said it had offered students in halls the equivalent of a 25% annual discount in rent and access to a support package worth £16.5m.
Other providers including Sanctuary, which warned students they could face debt collectors last year, have offered no refunds.
