Exclusive: UK graduates in Germany, Belgium and possibly other countries informed of rises as salary threshold is cutBritons living in some European countries face a huge rise in their student loan repayments later this year, the Guardian can reveal, in a move that threatens to trigger a fresh backlash for Rachel Reeves.UK graduates working in Germany and Belgium – and possibly other countries – have been told that their monthly repayments will increase from April, the Guardian can reveal. Conti