+1, that's standard for most online "parts warehouses". The way they can afford to offer things at such low prices is by not having an actual "warehouse" at all! Lower overhead. You order, they process and place their order, receive the part, ship it...Mike, that seems like normal operating procedures to me. 3-5 business days to process your order is normal operating standards. I know your main complaint is the customer service you received, but you also can't go into a situation expecting results in a couple hours.
My previous employer was a lock manufacturer and our order processing was 7 days. When you are dealing with several hundred or thousand orders per day, it takes time to process all of that information. Someone has to manually type that information in at some point and that takes time. I do see your frustration with your second call, a CSR should be a little more polite and professional.
I'm sorry you were not happy with your experience. I've never used the company or talked to anyone that has. My opinion is based on my background as an ex CSR.