Was-salaamu `alaykum wa rahmatullaahi wa barakaatuh,
Apparantely it's very difficult to get into Madinah University. See these threads
on al-maghrib which should help you inshaa`Allaah.
The second issue is your age. Are you old enough to be eligible to study abroad? If you are not, then I suggest you stay in the UK (maybe change darul-`ulooms, I know the one in London, Leicester and Bury isn't barelwified [If you need more info. let me know]). You may have issues with them in relation to `aqeedah or tasawwuf, but the quality of fiqh, hadeeth and tafseer being taught in these darul-`ulooms are not always found elsewhere.
Madinah University isn't the only option - I have heard from reliable sources that other universities like Imaam Sau`d University in Riyadh, al Eman University in Yemen etc are better than Madinah, See this
thread for more info.
May Allaah increase your knowledge and make your path towards `ilm easier.