Permabanned
A refund on postage only occurs when an item is deemed defective. This is not the case for the 970.
Misadvertisement is worse than defective... Of course it deserves a postage refund... Not fit for purpose
If it had been sold as a 3.5GB card, it would still have sold 10s of 1000s and no one would have cared as it wouldn't stutter
A customer should not be out of pocket for a falsely advertised item.