The European Central bank has not yet decided whether to raise the discount applied on the collateral offered by Greek banks, claims a source who spoke to Reuters.

According to the Reuters report, there have occasionally been discussions on various scenarios, but that does not mean that any decisions have been taken, as the source argues.

Last week the ECB’s president Mario Draghi told journalists that haircuts were “mentioned but not discussed”, in response to questions whether the bank’s Governing Council intends to increase the haircuts on Greece’s sovereign debt, in exchange for further funding.

At present the haircut is about 22%, with estimations suggesting that it could return to the 45% rate that applied last year. The Greek central banker Yannis Stournaras had pressed for a further haircut, which resulted in an additional 8 billion euros for Greek banks in November 2014.

A Bloomberg report on Tuesday suggested that in case of a credit event the haircut could rise to 75% or even 90%.