Campbell told The Sun: "I'm 29 now and feel at the peak of my career.
"Blackpool's been great, I love the fans, the staff and everything about the place. But I think people realise that if I want to take my career on and play for England I have to be in the Premier League.
"I had a conversation with the manager Ian Holloway and told him how I felt. He understands. He knows at my age with what I achieved during the season, he can't really stand in my way. It's not about money, I'm a human being with ambitions.
"If those could have been with Blackpool that would have been my dream but we went down."