***** on my Telkom account

Good day, I am really sick and tired of being taken from pillar to post by your call center. I have an LTE 10gb contract with telkom, which costs R203.69 per month. My account was debited with R775.82 this month and your accounts department's explanation is that 2 mobile contracts/upgrades were added to my profile in August. Please can Telkom explain how this happened? How possible is it that 2 contracts / upgrades were opened under my name and added to my profile without my knowledge or authorisation?? No notification, no verification from Telkom?? We trust you with our data and personal information and this is what your so called "secured system" allows?? On top of that I must be the one inconvenienced by running around getting affidavits and certified id copies for your mistake and ignorance??? Were these requested from the person who went instore and did all this ***** on my account in the first place?? My address on the system has mysteriously changed to a Johannesburg address. There is an additional contact number added on my profile. I am told that these upgrades were done instore. How???? This is a clear ***** case and I'd appreciate it if you attend to this as a matter of urgency!!! Does Telkom not have security and verification processes in place to protect its customers?????