British Prime Minister Teresa Mae on Wednesday warned British MPs that their rejection of the BRICEST deal with the European Union would be a "catastrophic breach of trust" in democracy, two days before a decisive vote on the text of the deal in parliament.

And the chances of rejecting the agreement negotiated by the Teresa Mae government with European leaders over 17 months; high during a vote in the House of Commons tomorrow, especially since pro-European and pro-Brest supporters do not support it.

Several weeks later, in defense of the text, Teresa May warned MPs against disappointing voters who voted for the exit from the European Union during the June 2016 referendum.

"Doing so would be an unforgivable and irreconcilable violation of trust in our democracy," she said in the Sunday Express.

"My message to parliament this weekend is simple: it's time to stop playing and do what is right for our country."