IMPOSSIBLE TO MAKE CONTACT WITH

How on earth can an organisation exist when it's clients have no possible means to make contact? My contract was up for renewal and I requested on numerous occassions that I be contacted as per the text messages received and then nothing. All of a sudden in Jan, ,y invoice is more than double. I tried calling someone to discuss, I tried disputing it on the APP as I had not approved any additions to my account. STILL NOTHING!!!!! So between my banker and I he advised as to how I can stop the payment. I was too late so I reversed it instead. Maybe now that my funds were not received, perhaps collections will finally call me. Incidentally, not even the call me back options worked!!! Furthermore, I tried to make a direct payment of what has been my bill for the last few months so that I am not a total impossible client but the system did not accept my account number s the narrative. I will try again later as it suggested but here's hoping to finally hear from someone at Telkom!!!