errrr OK,
Alan Greenspan is the Chairman of the Federal Reserve Bank in the USA, basically one of the US's head honcho's (financially speaking), I don't think he'll be able to help you with the coffee boy job at PGI Towers. I would have said PM Ant Jones, but unfortunately your under the age of 18 years and that would be breaking his parole conditions for him to converse with you (Internet Grooming is a terrible thing).
Done a bit of checking round here in the office, and we reckon that to do a Visa application of your own back will cost in the region of 5-6 grand including all applicable legal fees.