Disgruntled customer

After standing for 45 minutes in a line to pay for my sale items, the cashier then told me that my Woolworths account card was declined and directed me to customer service, where they did an inquiry and established that there was nothing wrong with my account or my card. I thus wasted almost an hour at Woolworths and due to this was late for work. I think that the issue could have been handled better and as a regular Woolworths shopper, I expected better!