The Camden rapper, real name Costas Dino Contostavlos, complained to The Sun that the trio were ignored because their singles failed to appear high in the charts despite good album sales.
He said: “I think the Brit Awards see success in number one singles.
“You get two number ones and you get quick status. They don’t see album sales as a big thing and that’s what N-Dubz are about.
“No one can beat our album sales. That’s why the Brits can do what they want. We’ve sold more albums than half of the nominees.”
But outspoken Dappy admitted he would still relish having a few more number ones under his belt.
He said: “We’ve only had one number one and we want more. But some artists would cut off their arms to have anywhere near the album sales we’ve had.”
Dappy and his bandmates, Tulisa and Fazer, are currently trying to crack the tough US market.
Fazer added: “It’ll be like going from the oldest in primary school year six to the youngest in high school in year seven. It’s like starting from scratch again.”