Why is it that I got 700 mL implants and at best they look very flat and do not stick out?

They look wide and flat and they are not full at the top, my old bra is too big and I went from 465 cc to 700 hp with a lift ! I thought I'd be buying bigger bras not smaller, very disappointed it's been two weeks! Feel like I wasted my money and in happy instead of happier:(very depressed I feel like I'm flat-chested my clothes!