Bad customer service from a rude agent

I have been having never ending drama with Finchoice. I was called three days ago by Finchoice to pay an outstanding amount which I paid immediately. Yesterday I got phoned again to ask to pay, I told the man that I had paid and sent proof. Now, this morning I phone Finchoice to ask why my account still shows in arrears. The woman I spoke to on the phone was not answering my questions, her child was crying and screaming in the background. She got frustrated with me asking her what is still outstanding and instantly and very unprofessionally transferred me to another collections agent without telling me anything. She just disconnected the phone without excusing herself or telling me what she was doing. All I want to know is why is my account still in arrears and why was that woman so rude to me and unable to answer me???