Have you considered doing your training with the forum sponsor (PSTT)? He gets plenty of glowing reviews on here!
Or if you if you want to still go down the “apprenticeship” route, I think Freshlinc (or sometimes called Freshlincski by some of our members) in Spalding, along with Fowler Welch (there might be a depot in your area) also run apprentice-type training schemes. However, be careful, because they might want you to stay employed with them for at least two years after you finished your training with them. Yes, you can still leave before the two years is up, but you might have to pay back the costs of the training (not 100% sure, but I believe that might be the case).
Oh, and one more thing, AVOID TRAINING BROKERS LIKE THE PLAGUE! Always, Always book assessment drives with at LEAST two training firms directly before laying down your hard earned dosh.
I wish you the very best of luck on whichever path you choose to follow in order to get your LGV licence.
Garbo. 
