hi all!!

Just joined as I have a problem, which due to total ignorance I can't solve. I started downloading Lion on my macbook and after about 30% download it stopped, saying it couldn't continue and all vanished from the screen. I guess I've been charged, so I can't go to the store and get it again.

Can anyone tell me, please, what I should do to continue the download. Any advice very welcome.

Thannk you!