Lamar Odom says his former management team is refusing to turn over access to his social media accounts ... and now he's calling them out.
Lamar says he changed managers recently but claims his old team has highjacked his social media pages and he's telling his old handlers to do the right thing and stop posting as him.
Sources familiar with the situation tell TMZ ... Lamar left his old management July 19 and asked them through his attorney for all the login info for his Twitter, Instagram, TikTok and Facebook pages, but still doesn't have access.