Disgusting service

I called the call centre to confirm my current limit , the guy I spoke to confirmed the amount and asked if I wanna increase it and I advised him to leave it but he decided to increase my limit then I noticed my services are continuing, I then called again and the lady I spoke to confirmed my limit was increased , I told her I never requested it to be increased she then had to listen to the call of which she did and the error was recognised n apparently escalated but that case was closed without any feedback. . Every time I call about the issue they need to listen to the call and escalate EVERY TIME. .. I'm so disappointed and I have to pay my next bill... cellc just doesn't care about how customers feel..