Unfair or misunderstanding???

Please will someone assist me with this. I settled and paid up my Daughter's account. I was told that I needed to come back in to do another contract. As its for my daughter I wanted to discuss if she wanted to go back. We decided to leave it for now. However since then I have received no further communication until a debit check on my bank account for this month and a notice on my daughter s phone today that I owe again. Why was i not informed telephonically or via email that there was a problem? Please contact me via my email that you have on record. Thanks