Hey,
I tried Corelli college but the examination guy is too busy I phoned him on Monday this week and he said he would likely get back to me next week.
However, after more searching I found a centre that will allow me to do the exams for cheap e.g. 5 units cost me £145. To be honest I couldn't find an cheaper place.
Get in touch with me and would be happy to help, as I understand how stressing it is.
Umar