Personal details been used for ********** purposes

I Mrs P Naidoo used to have a TelkomMobile account ,when my contract ended i converted my service to pre-paid i have all my accounts linked on the Telkom website ,i visit the website on a regular basis to recharge my accounts , i found an unknown number *** linked on my account this number was **********ly added and rica on my personal details , i am so afraid now Telkom has dropped the ball our details are been exposed and now used to perform ********** activites this act was done by the call centre, The telkom agent could not provide further details i want this investigated and action to be taken , has an innocent loyal customer of telkom for many years i so afraid of what's going to happen next , i don't want this to be done to other customers that trust Telkom .i Now want to cancel all services and my details to be removed from.your data base with immediate effect as my details are not been protected...