Travel Technology - Replacement iPhone AC Adapter - did you send it back?

For those of you who got a replacement iPhone AC adapter, did you return the defective one? They put in the letter they would charge you if you didn't return, but nobody seems to have been charged. Anyone get charged?

The return carrier is DHL, but it is virtually impossible to figure it out from the return label unless you read the letter they sent with the new adapter.

A person took apart the defective one. No wonder it fell apart: http://www.iphonehacks.com/2008/10/recall-details.html

I think the problem was that people must have stuck the defective adapter in some really tight sockets taht pulled the prongs out. I think if you avoided that you'd be fine using the old one as backup.

I sent my old one back. Do I remember right? I think I had to enter a credit card number to get the replacement one, and then when the replacement arrived it had instructions to send the old one back or you'd get charged for the replacement....

I think the only thing you had to enter was serial number.

I traded mine at the Apple store.

I sent mine back using the prepaid return label because I wasn't able to get to the Apple Store.

The letter that came with the replacement adaptor said that if I didn't return it in 10 days my credit card would be charged but since I didn't give them a CC number when I registered online for the replacement program I don't know what they could have done, unless they tried to bill me through my mac.com or iTunes accounts - but I didn't feel like testing it.