Very Poor service from Vodacom

After Numerous complaints with reference numbers, calls and so many Lies, I still sit with a network that the signal strength have deteriorated to O the past two years. Excuses upon excuse!!!! After calling me last Friday informing that I can keep the device then pay R3400. 00 for it or hand it in and they will cancel as they can not deliver the service I pay for every month!!!! Now received an mail that state I have to pay R13413. 00 to Cancel the contract which they broke, as the signal had no problem 2.5 years ago!!! Come on Vodacom this is real bad publicity an Very poor Customer satisfaction!!!! Keep to what you said over the phone and do what your contract states by deliver quality service!! Contact me to arrange date and shop in Centurion where I can hand in the handset and go to the competitors. You are bridging contract not me, so why must I pay for your *********** poor service delivery and yet no signal, still have to walk around the yard to get a signal THIS Is not right!!