The 38-year-old left Palace to take charge of the Trotters last week and made an attempt to bring coaches Lennie Lawrence and Curtis Fleming with him to the Reebok Stadium.
However, the Eagles have refused him permission to speak to the pair, who are currently acting as the caretakers managers as the search continues for a full-time boss to replace Freedman.
"Palace feel that right now it's not the right time to let them talk to us," Freedman is quoted as saying in The Sun.
"We've made the call and it's been rejected. We'll watch this space."