MTN thives

We recently cancelled a contract with MTN, using its outlet in Gardens Centre Cape Town. the agent that assisted us assured us that once we pay the outstanding, the contract will be canceled. After doing so, MTN still debited us for a full month, since the agent didnt alocated the money to our account, it was just floating at the shop account. after weeks of chasing them to refund us, we still not getting any results!!! this is a robery in day light!! discussting service from a national company! we want our MONEY BACK!!