Bernard Tomic said he hadn’t given up hope of his banned father coach joining him at Wimbledon after launching a fresh attack on the ATP following his first-round win.

Tomic said on Tuesday he would lobby tournament officials to overturn a decision to ban John Tomic from attending the championships, even as a paying spectator.

The Australian world No.59 also launched another scathing attack on the ATP’s recent decision to uphold John Tomic’s tour suspension for a full year, accusing tour officials of basing it on brief phone conversation rather than a thorough investigation.

John Tomic’s tour credentials have been suspended since he was charged with allegedly assaulting Bernard’s former training partner, Frenchman Thomas Drouet, during the Madrid Masters.

He denies assault, saying he was acting in self defence, and the case will be heard in a Madrid court in October.

The ATP announced on Saturday the ban would be remain in place until May next year after concluding their own investigation into the incident.

Bernard Tomic claimed the decision was based on a brief phone call late last week to John from a member of the ATP Board.

“They investigated something on the telephone for 30 seconds and made a decision, which is very bad,” Tomic said after a five-set win over American 21st seed John Isner.

“You don’t do that, I think.

“… I think personally you resolve something face-to-face. You don’t do it with a phone call. My dad said it was 30 seconds.

“For this guy … to make a decision like this across the telephone when he hasn’t talked to my dad, he hasn’t talked to Thomas (Drouet).

“He has to sit down with both people. He has to talk. It’s the ATP, they have to protect me.”

Under the rules of the ATP ban, it is up to individual tournaments to decide if John Tomic can attend events as a spectator.

He did so at Queen’s and Eastbourne recently but he has been barred from Wimbledon, as he was at Roland Garros last month.

Tomic said he would speak to “whoever I can” in the hope his dad might be allowed to attend his second-round match against American James Blake on Thursday.

“I’ll try have a word with them,” Tomic said.

“I know they’re very strict here. We’ll see what they say.

“It would be amazing to have my dad here watching me as a coach and a father.”

Tomic made it clear his anger was not directed at Wimbledon officials, but at the ATP.

“It’s all right that certain tournaments have decided to ban him,” Tomic said.

“But it’s all come through the ATP.

“There’s a lot of players that are very disappointed with the ATP, that’s for sure.

“I’m not going to lie and come here to a press conference and, you know, before post-match we always get ATP people telling us what to say.

“I’m not going to say false things. I’m going to say the truth of how I feel. It’s disappointing.”

Tomic said he spoke to his father, who is with him in London, after beating Querrey.

“He’s very pleased that I won,” Tomic said.

“It’s very difficult to play a match, the biggest tournament we have in tennis, not to have your coach there or your father who has been there throughout your whole life.”

The ATP said it was unlikely to comment on Tomic’s claims.