Poor pathetic customer service from FNB

I have banked with FNB all my life but I am sadden and very disappointed with the service I've been experience I have been getting from their departments. firstly I had asked them to quote me on life cover and they took 3-4 days to contact me. I then visited their branch in Cape town and was told to wait 24-48 hours for the funds to reflect in my accounts that were settled. I than traveled to JHB and visited their branch again and was put on the phone with a consultant that told me to wait again 24-48 hours and than return to them, which i did, when I again visited the branch I was told to produce a Proof of payment which I did and was told again that I should wait again 24-48 hours. I returned back to Cape Town and called them again this week and again sent my POP and told they will investigate and allocate the funds which hasn't been done. I've called, emailed and visited the branches, its really pathetic that they cant solve a simple query that has been brought to their attention countless times. lastly i have the FNB App and mine doesn't function without Data or Wifi.