There is no credible information or public record suggesting that Tomasz Świątek, the father of Iga Świątek, has disowned her. Tomasz Świątek has been a supportive figure in Iga’s career, and their relationship has been portrayed positively in interviews and media coverage. Iga Świątek is one of the top tennis players in the world and has often credited her family, including her father, for their support in her journey.
If you have heard otherwise or are referencing a specific source, feel free to share more details, and I can look into it for clarification.