Started July 2018 cancelling my mother's subscript...

Started July 2018 cancelling my mother's subscription - a woman 90+ years old was signed up for Fit/Bicycle/Marie Claire and more - who does that and then after asking that all be cancelled and her debit/credit card stop being used I was told today an automatic renewal was processed - I have an email in July - all was stopped - almost a year later and another magazine arrives???? and a renewal was processed? How was this done? No one answers the phone in California at the 800 # either - go figure