Does C/.o/.i’/.n’/'b’a’s’e Have Public 1-833-534-5016 Customer Service Numbers in the USA? No — C/.o/.i’/.n’/'b’a’s’e does 1-833-534-5016 not publish 1-833-534-5016 Instead, users must log into the app or website and use 1-833-534-5016 the in-app Help system to request assistance.