Anyway you're probably right. eBay purchases use to take around 14-20 days to arrive at home so maybe you're best trying to get it replaced instantly at some tech store (assuming they have Xperia Arc replacement screens there).
Most things I've ordered from China, Hong Kong, Sweden, California etc - you name it, I've likely bought from there - take anywhere from 2-4 weeks. And then you run the risk of getting the entirely wrong item even though you bought the right one.
That's happened a couple of times. Not sure if this is an Arc, I keep reading it's an X10 or something like that. No idea, I'm upgrading from a Huwaei to this new Xperia.
While looking for the legendary "underwear" post, I found out that you got an Orange San Francisco some time ago. That was budget Android too. What happened?
Same as mine then! Prepare yourself for the worst synch software ever. Just drag songs and that directly from iTunes to the phone connected as a hard drive. I even got the covers last time I did that.
You'll have to use that shitware for upgrading to Android 4 if it isn't upgraded though.