My 11yo DD is quite well developed for her age and I’m struggling to find an appropriate bra for her. I’m guessing her back is 28-30 inches and she is a C or D cup. All the 28-30” bras I’ve found are only available in an A cup. I’ve purchased 32c and 32d which are okay but far too big in the back. Has anyone managed to find something suitable for a skinny but larger busted girl?