Based on the context and the answer, generate a question. 

Context: So , in total we need to wait for 18 days to receives the item . The most problem occurs for online store is item delivery , and most buyer want the item arrives quickly . Those are the example how online store conduct their business differently , some of them are aware of these issue ( delivery , customer help desk ) , and some of them are not .

Answer:

Items take a long time to get .



Why do some buyers get aggravated with the store ?