Capitec Bank Unable to Safely handle personal information

I have a capitec bank account which i use with my phone number.I am now being bombarded with calls for different users from Capitec bank all having my phone number listed as their contact details. Worrying thing is the only advise they can give id for me to ask each agent that calls me for a different person to remove my cell number from that person's profile. What !!! shocked as this is a bank failing to handle my personal information and now asking meto correct the issue..