*****ulent contract cancelation (No security Measures)

My Telkom contract was *****ulently cancelled, when I contacted telkom they said I cancelled my contract online, how do you even cancel a contract online withoud doing security checks to verify the person, especially with the high number of online *****, now my credit profile is negatively affected, it has been 4 month's now and still no solution, every month they debit me 18k, totally unfair, Telkom get your act together and put in place proper security measures, CASE NUMBER ***2