British Prime Minister Theresa May’s Brexit withdrawal deal will be heavily defeated on Tuesday putting a final say referendum firmly on the negotiating table, according to one of her Conservative party colleagues.

Speaking to The Week in Politics, Welsh MP Guto Bebb predicted the deal will be "defeated rather badly" in the House of Commons.

He added: "At that point, I think it does depend on how the Cabinet breaks. There are different feelings at the Cabinet. Once the Prime Minister's deal has been defeated there will be a feeling that the cabinet can offer a lead.

"I wouldn't be surprised at that point if there are two options emerging, one is the Norway Plus option and the other one would be a final say referendum."

Mr Bebb resigned as minister for defence procurement last year to vote against the government on matters relating to Brexit and he is in support of a second referendum.

The MP for Aberconwy dismissed Labour leader Jeremy Corbyn’s intention to table a no confidence motion and said it is difficult to see how this could happen following the passing of the Fixed Term Parliaments Act, which sets the parliamentary term at five years.

Mr Bebb: "Even if we do lose a vote of confidence, there are 14 days for the government to actually try and recover the situation and put the issue to a vote again. It is also very clear that the DUP will not vote with Labour to bring down the government if the deal has been defeated and I have every certainty that the deal will be defeated.

"I don't think we will end up in a general election situation and even if we did, it is very difficult to see how a general election, where you talk about all the issues effecting the country, would actually resolve this particular issue. So I  think that is a non-starter and most Labour MPs also know it is a non starter. "

The Conservative MP believes that even though Wales voted to leave the EU in June 2016, opinion has shifted substantially.

He said: "What we are seeing is that of the 22 local authorities in Wales, 21 are saying they now want a second referendum. The opinion polls seem to say that there has been a change in Wales as a whole."

Looking back to the 2016 referendum he pointed out that most of the parts of Wales that were the recipients of significant amounts of EU funding invariably voted to leave. 

Mr Bebb explained: "I think the reason for that is that there is an understanding in many parts of Wales that European funding provided to Wales was not actually used in a very good manner.

"Most of the areas receiving EU funding received it three times because the money was used to create public sector jobs instead of creating wealth. " 

Alun Roberts, Chairperson of the Holyhead Business Forum said there is a lot of apathy in Welsh port town about what the impact of EU funding.

"A lot of people do not necessarily see where that money has been spent so they cannot necessarily see the benefit of the EU or EU membership. When I talk to people and ask why they voted to come out they cannot give a specific reason, it was gut feeling for many people and some of them may have been hoodwinked by some for the Brexiteers". 

Speaking to the same programme, he was skeptical about the prospect of a second referendum.

He said: "In Wales we had two referendums 20 years apart about having our own government but I think it would make a farce out of democracy if we had another vote. You can tell that the politicians in Westminster probably do want another referendum but they can't really go for it because they think they will lose all credibility."