Big O Tires

Dec 2010; I ordered 4 studded snow tires for my car; the told me I had to buy new rims so I did. When I drove down to get the new tires installed; I wanted to confirm with the sales person that I was dealing with that the tire sensors will still work, the manager of the tire store was standing there shuffling paper and started yelling at me; saying they NEVER said any such thing, I was totally shocked as I wasn't even talking to him in the first place, I turned back to the sales person and he stated that yes, they will work as it is activated by centrifical force and not an actual sensor unit (he made the mistake) so I got my tires ($1400), then they stored my summer tires for an addition $34... ok, I thought that was good. BUT, now that it is Spring; I called them to talk about swapping my tires over to my summers, they told me that they wouldn't install my summers until I bought 4 new tires from them, the told me they would be $225 a tire. I told them that the rear ones could need replacing but the 2 front were new and didn't, I asked if he could match them and he said he looked, not even a minute later he called back and told me to come and get my tires, they didn't want to help me. They have the WORST attitude I have ever seen, they're rude and they yell at their customers, they won't talk about tire performance or warranties, you really feel like they are doing you a big favor by even talking to you. If you do business with them; make sure you know what you're doing and be prepared to be VERY inconvenienced, treated like garbage and make sure you have lots of cash!