Poor Service from cashier

I love checking in Game for the latest specials, and will mostly buy something there once a month. But it is most frustrating to try and get someone to help me, and the staff are very unfriendly at this store. Was helped today by a lady called Aphiwe. I greeted her, got no answer. I asked her if she rang up a bag for me, she just nods her head in a no fashion. I had to ask her if she can speak to me, for I am the customer, she just said yes and looked the other way. Very poor service, I never see a manager to complain to. Tried to call on your phones (General Enquires), it said its busy and cuts me off.