Sending client information to incorrect E-mail and lack of customer service

Stanlib has been sending my mom's information to an incorrect email address. My mom mentioned she doesn't not have an email however she received an SMS stating that she was sent correspondence to her E-mail which she does not have. Someone out there now can access my mom's investments and transact without her consent. Called stanlib many times. I was put on hold for an hour. I sent email but received no response. If you are thinking about investing with stanlib. Just try to call as if you are an existing holder so you can get an idea of the service you will receive after joining them.