***** at Vodacom Key West!!!

I called in yesterday 10 June to block a ****** line - I was assured the line was blocked. Today at 10:30 someone went unlock the account, without my notification. I was not notified by Vodacom or received any call to ask for a mandate. THIS IS *****. So does this mean anybody can walk into Vodacom and just do any changes or request on someone's else's name or contract. When I asked so how do I get confirmation that no one will ever do changes again on my behalf, it was said that they cannot give me a peace of mind for that. VERY POOR!! Very disappointed as I have been with Vodacom for 12years. If this is the situation I will not upgrade on Vodacom again and I will cancel my contract cause I cannot trust Vodacom.