BAD NETWORK RECEPTION

Many people who calls me are complaining for not reaching me even when the phone wasn't switched off, I really don't like to switching my phone off. Voicemail have increased, sometimes calls don't wanna go out and i sometimes get forced to use my secondary sim card for making calls. SMS arrive a day later. My phone is using two sms card and only FNB connect shows the weak network signal. I don't trust this network at all. When I have to make a call I often ask myself if the call will go out. I am asking FNB to cancell the contract and allow me to go back to the network I was using. This is not the first time I report this and FNB has never come back to me if this matter is not resolved to my expectations I will report this matter to ICASA to seek clarity. FNB stop this, I paying this contract R399.00 every month, please stop this panicking on me!!!