ONLINE APPLICATION SERVICE AND CALL CENTRE SERVICE IS PATHETIC !!!!!

Got a message to say i was pre-approved for an increase on my revolving loan account. App**** online for amount much smaller than what was so called pre-approved. This On line application was done more than a week ago, I have tried to phone FNB twice to get feedback but get transferred all over and have still not spoken to anyone that can assist. If you online applications do not work, DO NOT OFFER THE SERVICE TO YOUR CLIENTS !!!! Please can i have feedback on my application or should i move all my accounts to another BANK ?????