More than 55,000 asylum seekers whose applications have been refused since 2011 may not have left the UK.The analysis of Home Office data does not include partners or children - so could be even higher.On the Daily, Niall Paterson speaks to our communities correspondent Becky Johnson about how delays in deporting failed applicants have led to some people being able to make multiple appeals.In one case, an asylum seeker has been in limbo for 18 years.Also, immigration lawyer Harjap Singh Bhangal talks about why so many appeals against deportation are successful. Producer: Emma Rae Woodhouse  Assistant producer: Iona BrunkerPodcast Promotions Producer: David Chipakupaku  Editor: Wendy Parker