Eurozone finance ministers have ruled out any further talks on a fresh bailout for Greece until the country holds its referendum on Sunday.
Greeks will be asked to accept or reject proposals made by creditors last week, with Prime Minister Alexis Tsipras urging a “No” vote.
Finance Minister Yanis Varoufakis accused the creditors of blackmail.
But he pledged a deal would be reached soon after the vote and that current limits on bank withdrawals would ease.
Earlier on Wednesday Mr Tsipras put new proposals to eurozone partners, accepting most of what was on the table before talks with creditors collapsed last week, but with conditions.
His latest offer is tied explicitly to agreement on a request for a third bailout from the eurozone’s bailout fund lasting two years and amounting to €29.1bn.
However, later Mr Tsipras made a defiant speech on national TV confirming Sunday’s vote would go ahead and urging a “No” vote to strengthen Greece’s hand in negotiations.
Mr Varoufakis said later in a TV interview: “This is a very dark moment for Europe. They have closed our banks for the sole purpose of blackmailing what? Getting a “Yes” vote on a non-sustainable solution that would be bad for Europe.”
But he added: “On Monday, the creditors, the lenders will have taken the message by the Greek people… So as soon as they get this message, be sure that in a very short time there will be a response.”
Dutch Finance Minster and Eurogroup President Jeroen Dijsselbloem replied to Mr Tsipras’s proposals by saying a new bailout could only be discussed “after and on the basis of the outcome of” the vote.
The BBC’s James Reynolds in Athens says EU negotiators believe the proposals themselves have now expired and that there is little point in taking the country’s phone calls until the referendum is held.
German Chancellor Angela Merkel was among those insisting talks must follow the outcome of the vote.
However, French President Francois Hollande said he wanted a deal to be found before the referendum.
“We have to be clear. An accord is for right now, it will not be put off,” he said.
Greek banks did not open this week after the European Central Bank froze their liquidity lifeline, and on Wednesday decided to keep the emergency funding at the same level.
But the ECB did not decide to demand more collateral from Greek banks as some had speculated it might.
Withdrawals from cash machines are capped at just €60 a day but some bank branches reopened on Wednesday to allow pensioners – many of whom do not use bank cards – a one-off weekly withdrawal of up to €120.
Many pensioners had waited outside banks from before dawn, only to be told to return on Thursday or Friday. Some pensioners were told their pensions had not yet been deposited.
Athens missed the deadline for a €1.5bn (£1.1bn, $1.7bn) repayment to the International Monetary Fund on Tuesday.
With the previous eurozone bailout expired, Greece no longer has access to billions of euros in funds.
IMF chief Christine Lagarde said the organisation would still “try to help” and that she hoped the referendum would bring “more clarity”.
Lenders’ proposals – key sticking points
- VAT (sales tax): Alexis Tsipras accepts a new three-tier system, but wants to keep 30% discount on the Greek islands’ VAT rates. Lenders want the islands’ discounts scrapped
- Pensions: Ekas top-up grant for some 200,000 poorer pensioners will be phased out by 2020 – as demanded by lenders. But Mr Tsipras says no to immediate Ekas cut for the wealthiest 20% of Ekas recipients
- Defence: Mr Tsipras says reduce ceiling for military spending by €200m in 2016 and €400m in 2017. Lenders call for €400m reduction – no mention of €200m
The European Commission – one of the “troika” of creditors along with the IMF and the ECB – wants Athens to raise taxes and cut welfare spending to meet its debt obligations.
Greece’s left-wing Syriza government, elected on an anti-austerity platform, has been in deadlock with its creditors for months over the terms of a third bailout.
Last weekend, the Greek government took the unilateral decision to hold a vote.
EU leaders have warned that a “No” vote would see Greece leave the eurozone – though Mr Tsipras says he does not want this to happen.
Human rights body the Council of Europe has said the referendum would “fall short of international standards” if held as planned on Sunday, citing the short notice given to voters and the lack of clarity in the question to be put to voters.
A poll by the Greek newspaper Efimerida ton Syntakton published on Wednesday suggested that 54% of Greeks would vote against the creditors’ terms for a bailout – but that the number of “No” voters had fallen since the introduction of capital controls.
Greece’s cash trap – Dimitris Katsikas, Hellenic Foundation for European and Foreign Policy
The economy is frozen and we’re in a liquidity trap, where everyone wants to hold euros.
Investment is non-existent and consumption has collapsed.
People have stopped submitting tax income statements and with the banks closed the government cannot receive anything. Supermarkets don’t know what to do with the cash they receive.
We are not in the eurozone bailout programme so the European Central Bank cannot increase funding to the banking system.
Credit agencies have reduced the ratings on Greek banks so they’re almost junk and even if they have collateral to give they may not be able to get new funding. Plus, we are essentially in default of the IMF.
Even if there is a deal, capital controls will be here for some time because there would be a rush on the banks if they re-opened.
An interim solution would only calm the symptoms of the crisis. Under a more permanent deal difficulties would remain for some weeks.
Are you in Greece? What are your concerns? Do you have friends and family in the country who may be affected? Emailwith your experiences.
If you would be happy to speak further to a BBC journalist, please include a contact telephone number. You can also tweet your stories to @BBC_HaveYourSay or text 61124. If you are outside the UK, send them to the international number +44 7624 800 100.
Or WhatsApp us on +44 7525 900971
Read our terms and conditions.