Although there is some correct things about what you said. When you delete a Linode, you get a prorated refund of the unused time. At the same time, you also get the bandwidth taken for that unused period.
So let's say you purchase a Linode on 1st. You pay $20 and get 200 GB bandwidth. On 15th (out of a 30 days month), you decide you no longer need it, and delete it.
You then get refunded ~$10 to your credit balance, and you still keep 100 GB bandwidth in your transfer pool while 100 GB go away.
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lakridserne
Serverfruit - shared and managed VPS hosting, SSL certificates and domains
Awesome servers rented from Linode!