Oversharges

I'm so frustrated with Edgars charging me for things i never subscribe to. It's now the 3rd month trying to sort out these charges. I get these call from collection department, when i call them they refer me to another department. The other department tells me oh no they shouldn't call you, the incident is in progress. How's it my problem that they don't have integrated system? I don't know how many people i've spoken to and getting different reference numbers all the time. If I owe them that would be different story, it's something like R72.00 or so subscription they can't get it right.. I'm so fed up with their sms...