Welcome to Gaia! ::

I've yet to find anywhere in the UK that sells binders. Underworks is your best bet, I reckon - I've heard their Double Front Compression shirt is capable of dealing with D cups at the very least, so that might work for you, and I've also heard their overseas posting is fairly reliable, though you do have to wait a while.

To be honest, binding is pretty difficult for a D or over. You just can't smush a certain volume of flesh flat, no matter how strong the binding. On the other hand, a strong binder, layered shirts, and the right attitude mean you can still pass even when fairly top-heavy.

D: you dont need 'permission' once your 18, it sucks you have to wait. If you could get them reduced now, even if you dont buy a binder for another YEAR you'll still feel soo much better with alot of the weight gone.

Thats one of the meny things I dont like about healthcare D: if its effecting your body in a negative way you shouldnt need parental permission to fix it

I suggest the double compression vest. If you look around, you'll notice that almost no bio male is flat. Nearly everyone's got a bit of fat on their chest. Even if you can't squash your breasts down to how you'd like them, just layer and you'll probably pass.