CAUTION: After I had entered my payment details for my credit card (in Safari) the site forwarded to a white page and nothing happened. I checked the console, and realized that a javascript error caused it to not work properly in Safari. I could finish the process by manually doing a document.forms[1].submit() in the console. That placed my order, and forwarded me back to their homepage.

HOWEVER: On the homepage, I got the "User db59706 already has more than 'max_user_connections' active connections" error. I reloaded, and my order history is empty. So I'm afraid that the payment-cleared transaction from their payment processor was lost because their database is overloaded. Thus, I think I just paid for the phone but they have no track record of my order. I'll contact them now.

Word of caution to everybody reading this, their site, store, and payment processing seem to be overwhelmed.