> No returns allowed because the item was considered "dangerous".
If you have prime, talk to customer support until you get the answer you want to hear. In general, they have been extremely supportive of all the various issues I've run across, but then again, I buy a lot of stuff from there.
I only ask because your post begins "if you have prime".
Resolving a situation where a different, cheap, unusable item is delivered is absolute basic customer service which was paid for when GP bought it, regardless of how frequent/premium of a customer they are.
You can't shop at costco without being a member, I don't see how that's related.
