Amazon makes a bajillion dollars a second. They could have made him happy and an evangelist for their customer service at zero impact to them. They just wanted to be dicks about it.
I'd agree with you if it was -3 months, but not noticing this amount money for 8 months? For all Amazon knows, this person was just out to scam them.
So offer to waive half the charges. Something....
I was an evangelist for the company. I posted regularly about how good of a solution S3 was for filmmakers and was offering to help friends back up their 10-20 terabytes to the cloud.
Not anymore.