Hello, Please help... I have a Sandisk Cruzer 2GB

Hello, Please help... I have a Sandisk Cruzer 2GB USB Flash Drive (sdcz26-002g) It stopped working properly. When I insert it into my cumputers usb slot, the orange light flickers once and then goes off immediately. I tried using it on other computers but it does the same thing.

I have just purchased it recently and I have valuable information on it. The store where I purchased it said they cannot help me but I must contact SANDISK.
Please assist me in getting it to work again. Many thanks, Leon Pursad
Email: l.p@vodamail.co.za
Tel: +27 82 816 0628