Bad Service

I've been using FNB for more than 3 years but the service i got today is very bad. the lady an attitude. I've been experiencing problems with my online banking especially if i use my laptop. it is either user name incorrect or password incorrect, but if i use my phone no problems at all. i normally call them when i get stuck and would assist me but today it was a different story. the lady did not eve try to put herself in my shoes. i think i should take my account to the bank that cares about their clients.