******* & I DON'T CARE ATTITUDE

I have a data account with Autopage which I use only for Wi-Fi on the router at home. My monthly subscription fee is always around R408 per month. To my surprise on 01/01/2016 Autopage debited R8255.73 on my bank account. On 01/02/16 I visited their branch in Richards Bay for an explanation and the consultant showed me the itemised billing which she also couldn't explain. She then logged a query with their head office, who told her to give me the very same itemised billing she couldn't explain. The itemised billings I received were for R6,706.80 and R2,211.05, which made the matters even worse as this did not add up to R8,255.73. I tried calling Autopage Customer Services to no avail as these people do not answer the phones at all. I sent the customer services an email on 07/01/2016 but no response has been received to this day. How does a bill come to that if no one was using the Wi-Fi from 16/12/2015 till 27/12/205. Moreover my Wi-Fi is password encrypted. My worry is, this is spoiling my credit record because I am not paying my subscription amount due to this dilemma, and I am not accessing my Wi-Fi regardless of the subscription amount which I will pay anyway.