Always have bad experience, Last straw.

I Often go to this store as it is very close by. I almost always leave unhappy because the service is appalling, unfriendly and unhelpful staff . The store also always seems understaffed because there are always long lines however there are always many staff members standing around chatting. <br> <br> However after today I wont be going back. I stood in a long queue to pay for my items as there were only 2 tills working. When i got to the front of the line the cashier ask whether I was paying cash or card, when I told her by card she told me the system is off and I need to pay cash. Why could they not put a sign up or just tell those waiting in line?!! I went to the manager who was just chatting to people and told him he said that it had just gone down but it didn't seem like he was going to make any effort to rectify the situation.