I've no idea what a Dance Associate Scheme is but can't the people who run it point you in the direction of charities that may offer funding? For example it is pretty usual for school bursars to have a list of educational charities that you can apply to for help with school fees (assuming you meet the criteria).
Schools often dish this information out, so you don't need to ask. If you are too embarrassed to ask, then there may be other, less motivated parents whose children would benefit, but who don't know about the funding either. Think of asking for any information to be announced publicly as a favour to all those other parents who are too embarrassed to admit they can't afford it.
I think it's a sign of the times that there is less money for this sort of thing around. I think if there was funding available they would have made parents aware of this when she auditioned. I know they do at Northern ballet for eg.