A disabled woman who wet herself after being barred access to a Jobcentre toilet could see her case raised in Prime Minister's Question Time tomorrow.

Rebecca Weston, who suffers from cerebral palsy and a weak bladder, soiled her trousers after a security guard at Mitcham's Jobcentre Plus refused her toilet access on September 29.

She bravely contacted the Wimbledon Guardian to highlight the issue and her story was read by 50,000 people on our websites last week and attracted more than 50 comments, mostly in support of Ms Weston.

Her plight could now be put before David Cameron if Siobhain McDonagh, MP for Mitcham and Morden, is given the opportunity in the House of Commons tomorrow.

Ms McDonagh said: "It's just horrific, isn't it? I can't guarantee if I'm going to be successful but I'm hoping to raise a question at Prime Minister's Question Time tomorrow.

"It would seem extraordinary that you would call disabled people into a building where there's an issue with toilet access.

"It raises the whole issue if you are going to say you want disabled people to work if they can't work without support you would expect employers to provide toilets - reasonably and morally."

Ms McDonagh said she has also written to Mitcham Jobcentre, work and pensions secretary Ian Duncan Smith, employment minister Esther McVey and disabilities minister Mark Harper.

She said: "I was really surprised by how many people responded to the story. I've read some of the comments and there's a couple of horrible ones but I'm really pleased that the majority of people have supported me.

"The whole reason I spoke up in the first place was not for the sympathy and not because I'm trying to get out of something, it's just really to make sure that people in my situation and worse situations don't have to be treated in that way.

"You know, it's 2014. It's ridiculous. It's discrimination by the very people who tell you that discrimination is unacceptable and it's wrong."

Ms Weston says she explained to staff she might wet herself if refused access to the toilet but was told to use facilities at the cafe down the road. She headed towards the exit, but it was too late.

A spokeswoman for the Department for Work and Pensions, which manages Jobcentres, said: "Jobcentres don’t have public toilets, but our staff will always try to accommodate people’s individual needs where possible.

"However people should also be aware that we do not tolerate abusive behaviour towards our staff."

Ms Weston insists she only used an expletive after the incident, to express her frustration.

Pete Hardy, who was at the Jobcentre when the incident happened, said: "That those with difficulties and special needs are not catered for with access to facilities seems rather discriminatory and the lack of sympathy shown there is indicative of some, though by no means all, of the staff.

"Surely those in need of the use of the centre need their dignity the same as anyone else; it is hardly likely to promote positivity in the search for work if people are humiliated, and made to feel worse."

Spencer Keen, a barrister who specialises in employment and discrimination cases at Old Square Chambers, said it is difficult to assess whether the Jobcentre's actions are in breach of the Equality Act.

He said: "Sadly this is a very complex area of law and to make matters worse there is no legal aid to help people like Ms Weston understand what her rights might be."