Get 30k Delta miles for $330

An email from Delta skymiles offers double miles on transfers through to end April. While the email says it is targetted, it seems to have been sent far and wide.

To get your 30k miles, simply pay $330 to transfer 30k to a friend. Your friend then pays $330 to transfer the 30k miles back to you. End result is you each have 30k miles added to your balance for $330.