Universal Music Group (UMG) says it will pull its entire music catalog from TikTok when its contract with the service expires on Wednesday (Jan. 31), accusing the platform of “trying to build a music-based business, without paying fair value for the music,” according to a new open letter.

In the letter, released Tuesday (Jan. 30) and addressed to UMG artists and songwriters, the company states that it’s particularly concerned about the rates that TikTok is offering to pay for its catalog. Other points of contention include the amount of content on TikTok that infringes its artists’ and songwriters’ works without providing “meaningful solutions” to help them combat it, the level of hate and harassment on the platform and TikTok’s stances on artificial intelligence (AI).