Instruct: Classify a given Amazon review as either positive or negative.
Query: Not so fast

I ordered a spare memory card for my camera. It was advertised as a Sandisk Ultra which is what I have now and I am please with. I want a card that is fast in read and write so my camera will take pictures faster. The card that was sent was white and clearly stated a slower (by half) write speed. If you look at the picture above, the card is black and states 15 MB/s. In the Sandisk specifications this is for both read and write. The card that was sent clearly stated 15 R MB/s and 7 W MB/s. Sorry, that's not the same card. I sent it back and Amazon was quick and responsive as usual. After a refund they recommended I order another card at the same price and a different vendor. They even covered faster shipping for me. But what came in the mail was the same inferior card from the same vendor. Back it goes and thanks for another refund, but I give up.