Subway Canal walk, slow seevice

Subway Canal walk shopping centre in Cape Town has the worst service... There doesn't seem to be a proper system... The people making the sandwiches keeps on leaving the counter to see to other people... I stood in the queue for about 30 mins to get a sandwich and by the time I got it the melted cheese was cold.. What a waste of time.... I must say that the ingredients of the sandwich was good though