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I attempted to deposit $2 of bitcoins and you double charged me as well I do not have the credit.
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Your Bitcoin client probably mistakenly displays the same transaction twice. You should update your client to the newest version. Don't worry as the amount will not be double charged.

It may take time for your deposit to be credited on the site, so please wait patiently.

https://www.reddit.com/r/Bitcoin/comments/3nfb2y/eli5_for_double_spends_bitcoin_being_sent_twice/

Someone is attacking the Bitcoin network with the "double spend" trick. Please patiently wait for the network to sort out the problem itself.