As of this point forward, any credits purchased outside of the marketplace or from a seller who is not an investor can be reversed if the source of the credits turns out to be not on the up and up.  The credits may be removed from your account, as well as any assets to recoup the amount if the full amount of credits is not available.  Whatever is left owed will be removed from the accounts that you sent them to, this will continue further down the line until all the credits have been recouped.

Do *NOT* purchase credits from another user with the paypal "friends and family" option, this will severely limit your ability to get your money back. If you purchase stolen credits from an unethical seller and your credits get removed by the game, you will not have the ability to get a refund from paypal unless you have chosen the Service/Products option.  Please do not sign away your ability to protect yourself and your account to save an unfamiliar seller a buck.

I will personally guarantee any investors credits source.  To verify they are an investor, simply mail me asking, If they are an investor I will forward the mail to them, and they can forward it back to you.  This completed chain is verification and you know that your credits are coming from a reputable source.

Sooo in summary:

Some people are shit and will scam people.  Don't use paypal friends and family option, choose Service/Product.  This will protect you and your account if the credits you purchased needs to be removed from your account due to them being not on the up and up.