PATHETIC SERVICE!!!

I raised a complain in October regarding my mom being billed twice in a month. After being spoken to as if i was an Imbesil and being pushed from pillar to post , we are no closer to understanding the nature of the bill except that is it for excessive calls. When I requested proof of this as my mom is at home the entire day, I received nothing. THERE HAS BEEN NO FEEDBACK! What is even more diabolical, is that no one ever comes home when the alarm is mysteriously sending signals. I guess the service we paying for , which is to actually protect is not part of the excessive bill. We have decided to have this account cancelled, but even that is proving too difficult to achieve. This service is beyond pathetic. Is this how you treat customers? My mom is a pensioner, it is unacceptable to debit her account in excess of R700 per month and give an explanation with no proof to back it up. I WANT THIS ACCOUNT CANCELLED WITH IMMEDIATE EFFECT as we are taking our business somewhere else. I also would like to deal with some competent and with some level of customer etiquette. Giving me a reason that the person dealing with the account is a trainee is just UNACCEPTABLE.