4 Weeks waiting for response

I app**** for a limit increase on my Credit Card 4 weeks ago. The application was approved pending validation of my bank statements. I sent them the same day as the application. 4 weeks later and I get a phone call from Absa asking whether I was happy with my credit card limit and whether I would like to apply for an increase... Really ABSA? I have a good mind and close the account completely.