That I didn't order or pay for. I ordered a small value item (£25) and they also delivered (addressed to me with only my name on the label but with no charge to my account) a fancy coffee machine worth £200+.
I feel that as I didn't order or pay for it I should send it back. My friend thinks I should say nothing and thank my lucky stars.
What would you do? YABU to keep it. YANBU to send it back.