credit card limit increase delay

on the 11th October 2018 i decided to raise my credit card limit after calling in to the credit card division and doing so and send send in my documents, a week later still no feedback or communication from fnb to say how far the progress is after they told me i qualify. Does it really take a more then a week to process this type thing this really worrying for a bank of this size and technology. im actually considering closing this account and going somewhere else