Bad service - no feedback

I Shashi Balram, am very unhappy with the service at FNB. I was contacted telephonically to offer me a temporary relief solution and was advised to complete this on the app. This was done and I was told they will contact me in 5-7 working days. I have tried calling the branch to no avail… I am starting to think that FNB are offering services they cannot keep up too. Please contact me as a matter of urgency regarding this.