Lines blocked after arrangement has been made.

On the 24/03/2016 I called collections and spoke to a lady. I told her that I could not pay the full arrears as arranged. I then asked her what is the minimum amount that I need to pay to have the line reactivated. She said R3150. I also asked her when was the absolute last day that I could pay the balance, she said on 15/04/2016. Yesterday I got a call from collections asking me when I'm going to pay. I told the gentleman numerous times that I had already made an arrangement and that he should go and listen to the recording. After explaining a few times he finally loaded the arrangement which apparently was not loaded. this morning the line is suspended. The phone call on the 24th was made to avoid having the line blocked and having to pay extra money. That is why I asked her when the last day I can pay the balance is. To avoid having the line cut again.