A bunch of bullies

I am very angry with this company because they are not transparent with their policies, they offered me fibre where I was residing as a tenant, when I moved I informed them on time for them to suspend my service and they told me I would be liable to pay the remaining balance which they said was for the router, they also gave me an option to return that router and not pay anything , which I opted for, I returned the router on time but to my surprise a very Bully woman from Webafrica called me telling me in a very rude manner that I owe them about 3000 rands, which doesn’t make sense to me because it’s pay as you use service, so the fibre was cut off, but for some reason, known to them, I owe them, I possibly can’t move with my fibre, and I also can’t be billed for something I no longer have use for, and that’s when she threatened me with being black listed and she told me that the call is not even recorded, I asked for her name and she only said it was Chaney, didn’t give reference of the call and refused to give me her surname. I thought big of this company until now, I feel this is very unnecessary and very unprofessional, they must either state their T’s and C’s clearly from the beginning or they must hire people who can speak to customers in a good manner when problems of this nature arise, I’m verydisappointed !!!