Instruct: Classify a given Amazon review as either positive or negative.
Query: PC2, DDR2....I need answers

I got a PC2 Ram and it definitely cant fit in my notebook. I thought it was a a SDDR2 for my inspiron 1520. I sent it back to BUYNOW and i have yet to recieve a refund. I am no longer in the US and I would really like my money back to buy another Ram.