Payment refusal

After numerous email to this lady, she denies things I have said on email to which I have records of, think she deletes without reading. I made an offer on my cell c account which was handed over to her, she declined it, said she does not work for Cell C, however she is collecting their Debt, is cell c not her client, in that case she works for cellc, she refuses to send me a statement that I have requested on numerous occasions. she says I am disrespectful and rude and I have not said a rude thing to her, I had attitude yes.