********** contract opened

I had a data contract with Vodacom that mysteriously stopped working on 2 September 2017. I also noticed I was debited R659 instead of the normal R168. I phoned Vodacom to query this, as I thought perhaps it was a network error, and after about 6 attempts later after being directed to various departments, I managed to get through and was shocked by what I was told. I live in Durban, and was told that my data contract was cancelled, and a cellular an account was opened at the Vodacom store in Southgate mall (Joburg) with my number. HOW IS THIS POSSIBLE?? When I asked the operator to cancel the account, she told me that the person who is in possession of the account needs to do that, and that I must phone the Southgate store and query this. WHAT KIND OF SERVICE IS THIS!!! WHY are the necessary security checks and account holder verifications that have to take place NOT being done!? This matter needs to be rectified ASAP! I need to be refunded for the careless actions of Vodacom! I am EXTREMELY upset and will never open another Vodacom account again!