Bernard Tomic remains amazed that he has done so well at tennis given that he hadn’t “really tried” and says he was offered millions of dollars to play tennis for other countries.

In a wide-ranging interview with the Seven’s Sunday Night program, the troubled star was unapologetic for the way he played tennis and lived his life.

“There’s been big offers to play for different countries. Millions that ... people could only imagine,” said Tomic, who was born in Germany to a Croatian father and a Bosnian mother.

“And, you know, I never did that. I stayed loyal to Australia ... at the time I thought about it. The money was insane.”

Tomic, who has slid down the rankings from a high of No 17 to No 69 after a year of lacklustre displays, came under fire most recently at Wimbledon where he lost a first round match in straight sets and admitted to putting in little effort.

Afterwards he described himself as being bored on court and added that critics could only dream of what he had earned by the age of 24.

“Throughout my career, I’ve given 100%,” he told the Seven Network. “I’ve given also 30%. But if you balance it out, I think all my career’s been around 50% and I haven’t really tried, and really achieved all this. So just amazing what I’ve done.”

Tomic also felt he was “trapped” by the sport because he’d earned a good living from it.

“It’s affected me a little bit mentally and emotionally,” he said.

“So now it’s just about finding my balance and pushing on the next 10 years and being successful even more.”

Tomic defended his father and sometime coach John, saying the worst he’d done was throw balls at him.

But there were no good words about former Davis Cup captain and two-time US Open winner Pat Rafter.

“Pat’s said a lot of bad things about me, throughout my career, and, you know, he’s always perceived as this nice guy, and this image,” said Tomic.

“People don’t know him in the back of closed doors. He’s not that much of a nice guy ... he likes to put on a show.”

He conceded the Davis Cup side was better off without him – at least until he worked out what he really wanted.