Money deducted from Capitec Account after virtual card

My stepdad went to Capitec bank and asked for a virtual card. Whilst busy with the virtual card the teller asked to see the phone in order to assist him. He gave his phone to the teller. He then left the bank. He did not use the virtual card that day. However the evening when he checked his phone there were multiple transactions taken from his account from payD MTN. He reported this to Capitec ***** devision and they refunded everything back to his account. A few days later they again reversed a portion of the transactions and sent an sms to advise that the merchant provided evidence for the charge. Myself, my mom and stepdad are all Capitec Clients. Even my sister and her family are Clients with Capitec. Should this issue not be resolved. We will all be forced to close our accounts based on the fact that our money is not safe with Capitec Bank. I strongly advise Capitec Bank to investigate the Gezina Branch and this specific matter.