No signal

I've complained on Hello peter before and now I'm complaining again.with the same problem I've been having for 2 years and no one fixes the problem they keep telling me I must phone if the problem consists but I phone and phone and phone but getting the same ****ing response I've done part on this side phone us if it still apears .....guess what cell c it's been two years my signal still the same up and down its getting worse actually.i want to cancel my contract I have because it's useless having this contract with you and I can't use it properly .its breach of contract.so if u are reading this I don't want you to tell me you will fix the problem I want to cancel my contract or I'm going to sue cell c.ive read my consumer rights and you are breaking the rules.i don't want to be cellc anymore .I've almost thrown my phone against the wall it's frustrating can't do business properly .so I want a phone call from you guys canceling my contract a have with you immediately! Worse server provider of all time.and now I'm struggling to complain because I don't have signal!!!