European Council discussions were overtaken by a row over an EU budget bill presented to nine member states.
The UK, the Netherlands and seven other member states have been asked for extra payments. Why?
David Cameron and Mark Rutte are seeking ways to avoid the payment at the European Council.
Member states, Commission and MEPs are getting ready for tough talks on the EU's budget for 2015.
Some €26 billion in unpaid bills have piled up during 2014, the European Commission tells member states.