No will at Vodacom to investigate ********** actions

<p>In January my mother's bank account was compromised and over R50 000 was ******. The bank claims that somebody had access to her phone to use the one-time-passwords that were sent. Nobody had access to her phone, but on taking this up with Vodacom, they admitted that an unauthorised "Twin Sim" had been made by somebody at Vodacom. Since then, this Twin Sim has been used repeatedly to send out messages along the lines of "You have won R1million rand, please contact us to claim". My mother constantly gets calls and messages from unknown numbers about this and many of these calls are very abusive. We have contacted the Vodacom call centre repeatedly to get this resolved. In all cases we are told that somebody from Vodacom will contact us, but this never transpires. Is there somebody at Vodacom that can help? This has been going on for weeks!</p>