Cancellation of contract

I want to cancel contract with you with immediate effect and i dnt know y u charging a fee while its ur network problem in my area .i have logged network issues since last year june im xo with following ref numbers : Kindly see the ref numbers: Ec-1lyo-17ru49 Ec-1lw7-2ktxil Ec-1m3y-1zv6p5 Ec-1m3y-205x10 ***

But still nothing i been paying u without enjoy benefits.