Billings enquiry not dealt with

We received a message from Telkom saying our Wi-Fi account was in arrears even though there is a debit order on their account. On receipt we phoned their customer service line. After a 20 minute wait on the line we were put through. We enquired as to the procedure to follow and did it exactly to settle the account as per their records. They told us that after payment we have to call their helpline again to give them the reference number of the payment so that they can put it off the account which is already a lot more trouble than just doing it on their side. We then called the helpline again. After 20 minutes the call was dropped before being put through to a consultant. The second time we were only put through to their customer service department after 25 minutes on the line. Was then put through to the accounts department to settle our account. After 35 minutes on the line the call was dropped. In total thus more than an hour was spent on the line and no help was received. We couldn't phone again as it was now past their operating hours. Our Wi-Fi account is still suspended even though we have made a payment and tried to contact them