Poor service

Yesterday 29/10/2020 I phoned FNB at 08h20 asking my private banker too phone me back urgently. At 15h59 FNB phoned me back 7,5 hrs. Later??? about a debit order dispute I could not hear the lady on the and asked her to phone back after 20 minutes of waiting I phoned them I was put on hold for 29.46 minutes, I hung up and tried again as someone answered they put the phone down this happened 3 times eventually I spoke to an agent but they said it was to late in the day to do anything about it. I received a call beck at 11h12 today and the matter is still not resolved, it looks FNB does not want my business or money I have been a loyal FNB client for the last 20 odd years just very poor service I’m thinking of changing banks