No tills for 2days

I was at Cresta incredible connection yesterday but left because, the queues were long and their till machines were not working, they were using paper. Can you imagine in 2017? Today out of desparation I went again, same story as yesterday. Its so surprising that a computer Store use pen and paper for 2 days in rows, and I stood for 15 minutes just to pay. The so called lady manager, did not help but was very rude to staff & customers. This is unacceptable for such big organization