Bernard Tomic does not intend to accept the offer of "clear the air" talks with Tennis Australia until his sister Sara's funding is reinstated.
The 22-year-old, Australia's highest-ranked men's player, was dropped from the Davis Cup team after criticising TA for a lack of support.
He said he did not believe there was any point in a meeting "until I am satisfied TA is committed to funding the development of junior Australian talent, including my sister Sara, on a non-discriminatory basis".
Tomic, who was arrested in Miami recently after an incident at a hotel, has a difficult relationship with Australian tennis' governing body.