<prompt> Human: I switched over to T-mobile last month. Tried it out and didnt like it - service was very spotty in my area despite their coverage map saying there are no coverage issues in my city, and often times would fail to make a call or receive a text. To me, having a constant loss of signal in an area that is promised to be full-coverage is a breach of their promise and obligation to me. I wound up returning the phone in under 2 weeks, paid the restocking fee, and moved on.I just got a bill from them for 107. They charged me for a full month of service, as well as insurance on the phone that I had explicitly told them I didnt want. I feel like this bill is unjustified - I didnt get what I was paying for, which is why I ended the contract when I did. Am I really liable for paying this bill? Seems unfair to charge me for a month of service when I didnt actually get the services I was promised. I called them up but the person I spoke to wasnt at all helpful in telling me anything other than when I had to pay by.  <response>: When you signed up for the service, you accepted T-Mobiles Terms of Service whether you did this by activating a prepaid phone, or signing a 2 year contract. Read those Terms of Service. What do they say? Did you return the phone within the stated return period? 