No network coverage

I laid a complaint 2 weeks ago about the fact that i never have signal and am therefore unable to use my phone. I was assisted and the signal and network coverage seemed to improve until this morning again. My phone has absolutely no signal. I cannot use the phone at all. It has been like this since I woke up at 06:am this morning. What am I supposed to do? How is having a contract with you beneficial to me? I'm paying every month for services that I am unable to use and its really becoming very frustrating. I pay the full amount of my contract that I agreed to every month yet I am not receiving anything in return and not receiving what you agreed to provide me with.<br> <br> I need this matter resolved once and for all please.<br> <br> Goodluck trying to call me on a cellphone with absoultely no signal