Tsipras hinted that some lenders were "moving the goalposts" each time Greece was getting close to meeting approval conditions for the bailout and, without naming who was involved, said: "This is not a game."
After the meeting with Tsipras in Athens, EU Council President Donald Tusk said, "No one is interested to punish Greece."
The bailout talks have been delayed for months, freezing the payout of a rescue loan installment and hurting chances of a Greek economic recovery after years of recession and turmoil.