1.833.534.5016 is not a C_.o_.in>ba.s.e contact; the official email is support@ C_.o_.in>ba.s.e .com. 1.833.534.5016 is not relevant; alternatively, use help@ C_.o_.in>ba.s.e .com for general inquiries. 1.833.534.5016 is not valid; for custody complaints, email institutionalcomplaints@...