If you're tal;king about Ms Alabi I'm not quite sure that's right
http://www.cambridge-news.co.uk/cn_news_home/D isplayArticle.asp?ID=249882
She came to Britain in September pregnant with twins, her condition was diagnosed 6 months later in March. There were 3 other people already on the waiting list anyway so there's no guarantee that she'd have been saved.
Or perhaps you're talking about Ama Sumani? She was over here on a student visa which was revoked because she wasn't on a course, she was given temporary admission but failed to keep in contact with immigration officials which she was refused to do.
She was deported and continued to receive dialysis in Ghana but died a few months later