I've been trying to place an order on shop.tesla.com for several days now and am having no luck. Has anyone else tried to order? I've tried 3 computers and 3 browsers. Most of the time I can't add the item to the cart - a wheel sits and spins. Today I was able to add an item to the cart once, but then wasn't able to check out. I sent Tesla an email yesterday ([email protected]) but haven't heard back.