Poor Service Delivery To Lotto Customers

I waited for more than 5 mins while ringing a bell for lotto assistance as the window is outside of the main shop. I went to customer service and requested to see the manager, and i was told he's not around and nobody knows where he is. i find both incidences unacceptable especially the lotto one as it is not the first time it's happening. As a result I have withdrawn myself from going to that store again.