Wrong amount debited

I owed Telkom R 1,876.25 and my account was suspended. On the 23rd of Jan 2014 Telkom debited a wrong amount of R 1,550.00. I was amazed afterwards I called the call centre and spoke to Zane Chequenton asking him why my services were still suspended after they have deducted. He explained that the amount is still outstanding. After few emails to him and from me, I wanted to know why am I suffering for the mistake done by them. If I owe 1876.25, why they deducted 1550 instead and requested they reconnect me because it wasn't the first time they deducted a wrong amount and they always reconnect because it is not my fault but whoever was responsible from their side. I requested Zane's manager/supervisor to escalate the matter, I then sent Granny Malinga an email, she hasn't responded in 9 days. Now my complaint is exactly what Telkom is putting me through then ignore my query. My service is still not restored and no one is giving me any feedback or respond to my email. thanks.