Bad Customer Service

Today I contacted FNb to update my Cellphone number, the lady at the telephone banking did an awesome job assisting me. The problem came in when i got through to cellphone banking. Spoke to Masai. Upone giving her my id number after she places me on hold immediately advising me that she needs to check something. Now being a manager in a call center, I know you, at least she needs to let me know why you placing me on hold. After 5 min later she comes back asking me for my account number when I asked her why she said she can't pick up my profile, I asked her simply why one department pick up my details and they can't and request to speak to manager as it comes across that she clearly doesn't know how the system work. She comes back and tells me she can't find her manager. At this point I'm fuming and then she goes, and places me on mute and doesn't talk thereafter. I've never dealt with such incompetence in my entire life. As a customer of FNB I'm disgusted and I'm looking at finding another bank cause the service really SUCKS!!