Telkom Suspends Accounts Before Due times

I have be often informed that Accounts do not get suspended or blocked before you reach 3 months in arrears. Problem is, i look at the invoice, it gives me an amount that shows overdue, and i pay the overdue amount. Then 2 weeks later they suspend the account. and have not received the new invoice from Telkom. Then i speak to telkom and they say i am in arrears, and there is no way i am three months in arears. THey say i only paid a portion. Now that sounds more like telkom is very confused, because what the invoice shows as over due on the top is what i paid, so up until the 4th of October i was only 1 month behind, if i read them correctly, and only now the 13th October do they say i am 2 months behind. However, as far as i was informed, there was no portions paid, it was paid according to what their invoice showed was overdue. Now they suspend the line and simply have this \your problem