Account locked without any notification

On the 14th of April my account was locked without prior notification or explanation. I have been trying since then to get some answers out of Telkom. After speaking to 3 or 4 different Customer Service Agents, finally I was informed that when I did an upgrade on my account, my credit limit with Telkom was exceeded. I was not even aware of the fact that I had a credit limit. So when asking them how we can solve this problem, they told me they will put in the request for the suspension to be lifted and the credit limit to be adjusted. I was told to wait 2-3 hours and then everything should be working again. That was yesterday already. Since then, I have spoken to another 3 agents, every time I am told I must give it a few hours. Now this afternoon, after following up AGAIN, the agent informs me it takes up to 72 hours for the block to be lifted. Bearing in mind, this is not something I did wrong. My account is and never has been in arrears with Telkom in the how many years I have a contract with them. I can't get into my own house at the moment, because I can't phone open the security gate. My little daughter and I had to sit outside the gates last night for who knows how long, hoping for someone to come through the gate, so we can just inside the complex to our home. This in unacceptable. And then, to get treated by the agents as if I am in the wrong? Absolutely horrible service. There is really no words to describe the utter disappointment I have in the lack of proper Customer Care from Telkom.