High billing despite a limit on my account

I currently have limits on my cellphone contract with Autopage. That means when I reach that limit my line is deactivated and I cannot use data or make calls until the next month. In December that didn't seem to be the case. I ended being charged over four times my normal amount. When I went to complain at the Clearwater branch, I was told they are offline and couldn't lodge the complaint. I was told I would be called back to feedback when online again. More than a week later, I'm still waiting. They however indicated that the system did indicate me reaching the limit, my line being disconnected, but then re-activated somehow multiple times in the month. Who reactivated it and why? I didn't authorize the re-activation. What about that extra money I now had to pay that was not budgeted for? <br>