Worst service received from Netstar

I called Netstar today to cancel account and got the worst service. Since i joined Netstar I've never received a call from them even when I was driving into hotspot places nor when removing a battery from my car but money is debited monthly. In calling to cancel, the 1st agent I spoke to (which I forgot the name) said I can't cancel because my account is being handed over to legal department. I asked the reason for that because my account is up to date with payments, I did not get the answer but the lady said she will transfer me to the legal department. Instead was transferred to to the same department to speak to a different agent, she also said she will transfer me to legal department but only to be transferred to the same department again and this time spoke to a guy who kept on saying they can't hear me and hung up on me after sending me from pillar to post. I need to know why I was told I'm handed over to legal department when my account is upto date with payments and still want to cancel my account. Bad service received from them since I joined, but they never miss debiting our money.