Please can this be resolved

I wanted to move my line in March of this year. I phoned and requested to move my landline but not my ADSL line, they pitched up at the new address about 3 times to move the ADSL line, I then phoned and explained that I do not want the ADSL line anymore and they only need to move the landline, I was then informed that it would be better if I moved it because it won't cost me anything and then I have it in future if I need it and if they had to change the move request it will take another 21 days before they can move the landline, so I decided to go ahead on this basis, when I received my statement there was a charge of R695 for the ADSL move, I queried it immediately, I phoned a couple of time, logged complaints on the website and even went into the store to get this resolved, I then received an sms that if I do not pay within a certain time I will be handed over. I have explained to this lady the situation and she just said that she cannot go that far back to check, I also asked her numerous times what I should do to get this resolve and every time the answer: I CANNOT GO BACK THAT FAR TO CHECK. The ADSL line also never worked but I still paid it!! What a *******