Hello Dimsky,
Our consumer service team can help walk through uninstalling your Venturi towel ring if needed. Please contact us directly at 1-800-PFAUCET (1-800-732-8238), and reference case # 201606560203, which we've created for you to speed up the process. We also have a video, which you may find helpful, on the subject here: https://www.youtube.com/watch?v=XE7SXCsKl7E&feature=youtu.be&t=1m38s.
Thank you, Pfister