No DATA with Telkom

We've had Uncapped wifi with Telkom for a while at home now, but for the last month had no access to our internet. We've logged service complaints and they just inform us that there is a bulk fault and they don't know when it will be repaired. Yesterday they phoned my husband to inform him that our line has been suspended because we owe them R895.94 and until we pay the line will not be reinstated. I'd like to know how Telkom can expect us to pay outstanding money if we haven't been able to use their services for a month? Surely the services we couldn't use should be deducted from the outstanding amount? Needless to say we've also cancelled our subscription with Telkom. We managed to find a service provider that doesn't have service issues. NO THANX TO TELKOM, most pathetic service provider I've come to know.