R
Ray Stafford
Also I don't think you can be an apprentice over 24 ??
I'm pretty sure you can be an apprentice at any age. Whether you can get government funding may change based on age, but the employment status of "apprentice" is independent from funding sources.
But he is breaking the law for paying you less than the NMW and owes you back pay - see here for advice on what to do under that circumstance.
I am assuming that the pay rate you are stating of £6 per hour is gross (ie before tax and NI). NMW is calculated on gross, not on take home.