BLOCKED LINE

I have a MTN account, MTN choice packet, with 50 talk minutes and 100mb data every month.<br> I am adding prepaid data additional to this because of internet useage. <br> The debit order went through the bank on 30th June, but today, Saturday 4 July my account was blocked. All internet, sms, calls was blocked.<br> I called the 808 free customer service and was informed that the line was blocked because I have reached my call limit ?<br> What call limit ? I have al my free minutes left, and this morning I loaded airtime, prepaid airtime, and I bought data on the *141*2# app.<br> That data was still active and not used up.<br> So how can my line been blocked ?<br> If I have used all my data, I can understand that internet will be down, until I reload another data bundle.<br> But my line was blocked with still data available. <br> <br> I think it will be better to look for a network that can work properly.