I do not mean to "digress" away from the thread, but this is my personal experience.
When the outcome of my UCAS application was out, my - current - school listed several criterias before I could be matriculated. One of the criteria was that I need to sit for TOEFL or IELTS. So I emailed the admissions administrator, asking her if I could be excused from taking that test. I reasoned with her that Singapore is an English-speaking country and that I got a B3 for English at "O" Levels (I'm a polytechnic graduate). It was a long shot, but suprisingly, she allowed it.
So what is the moral of the story? Well, if any school asks you to sit for an English test, ask them if you can be excused from taking that test. You won't know until you ask.