59 second customer service drive

Nedbank are asking customers to let the area manager know if they haven't been greeted when walking into their bank before 59 seconds have passed. You are apparently guarantee'd a call from the area manager to receive your feedback. I have been into bedfordview branch on the 23 March as well as the 29th March 2016. No greeting, smile, nod or wave from any of the staff after being in the bank for 10 minutes the first time and 30 minutes the second time. I infact only was greeted when I got to the operator. No phone call from the area manager. I am just wondering why nedbank are running this customer service drive when infact - nobody in the bank wants the feedback.