The border at the moment is invisible, and people, goods, and services can travel through it freely.
The EU is in no rush to convene an emergency meeting of EU leaders, which would be necessary for any changes to the deal or for a Brexit-day delay.
However, Mr Mann said any funding offer would.
"The Prime Minister's position on this is unchanged".
"The fact that recess won't be taking place shows you that we are taking all available steps to make sure that 29 March is our exit date", the spokesman said.
German government spokesman Steffen Seibert said "opening up the withdrawal agreement is not on the agenda".
Hunt said it was too early to say if an extension to the Brexit process would be required.
"But if we are able to make progress sooner, then that might not be necessary".
"But we still don't know what exactly the House of Commons is for".
After MPs gave their backing to proposals to replace the controversial Irish backstop in the Prime Minister's withdrawal deal, here's a look at what could happen next in the Brexit saga.
The single most important issue in the agreement remains the fate of the border between Ireland and Northern Ireland.
The EU's concerns that the United Kingdom could "access the single market by the back door" would also need to be alleviated, he said.
"We are determined to lead a programme of national renewal post-Brexit by rebuilding and reconnecting communities, driving prosperity and unleashing the potential and creativity of hard-working people in every part of our country". Mrs May told MPs on Tuesday night that while there was "limited appetite" to amend the deal, the House of Commons had "made it clear what it needs to approve a withdrawal agreement".
Supporters of a sharp exit with the European Union fear it will trap Britain in regulatory lockstep with the trading bloc, and want the backstop replaced with unspecified "alternative arrangements".
"The Withdrawal Agreement will not be renegotiated", added Juncker, who also said, "Yesterday's vote increased the risk of a disorderly withdrawal", and that the European Union needs to be ready "for all scenarios, including the worst".
She said: "The disruption from no deal - simply from the lack of preparation - would be extremely damaging".
"We have put these proposals together, we have to work them up, we have to go through them in detail with our partners in the EU".
As well as her discussions with European leaders, Mrs May also focused on winning over domestic critics as she began a new charm offensive on Monday by hosting Tory MPs for drinks in Downing Street.
Ministers in Theresa May's government are setting out to woo members of the opposition Labour Party, in the hope that they'll provide enough votes to get her Brexit deal through. Adding to those concerns, the Bank of England says a no-deal outcome could plunge the world's fifth-biggest economy into an 8 percent recession. "We're asking for money for areas that have not had their fair share in the past", he said.
Parliament had been due to break up on Feb 14 and return on Feb 25, according to a provisional schedule.
Labour leader Jeremy Corbyn warned Mrs May "there can be no more hiding and no more running away" with less than three months until the UK's scheduled departure from the EU.
More fundamentally, the problem is that while the Prime Minister feels reassured by her fresh mandate, Brussels sees only more chaos.
Believe me, this has been explored endlessly in the negotiations over the last two years'.