Have you taken the Theory and Hazard Perception test and/or had any previous lessons or private practice?
With a budget of £300 you could expect to receive about 12 x 1 hour driving lessons. You would also have to pay the Driving Standards Agency (DSA)for the Theory test of £31.00 and a weekday Practical test would cost £62.00 (excluding the driving lesson). These costs are from 30th March 2009.
If you require any more information then please do not hesitate to reply.