Worst Service

I saw a 500gb internal hard drive online and I made a call to find out if they have it in stock and the salesperson said that they do have it in stock and I drove to them and upon arriving I stood in the que for 15 minutes only to be told that I need to go to the other side for sales but when I got there , there was no one to assist on that other side , then the lady that sent me to the other side came to assist me and said she is going to ask the salesperson about the item then she came back and said she is waiting for them to invoice me and I waited another 30 minutes for that only for her to call me and tell me there was an error with regards to the system but they actually don't have the item only after 1hr30minutes they tell me I waited for nothing.