If you are unhappy with the support you received then you should complain. Look at it this way, ok it won't change the bad experience you've received but it might just help other women. I would if I felt negative about my support, as it is my hospital was pretty good - it's the doctors I've seen since that have shown ambivalence to bf but that's another story (doesn't matter to me as my bf is now well established)
Imo all babies have a right to be breastfed and if we can help more women by making the hospital/community mw/ hv know there is room for improvement so much the better. If other women can keep it up for 1 month, 1 week whatever, that's better than nothing.
(Funny I didn't really have much of an opionion about bf before my dd was born, now I can't imagine doing it any other way)