Looks like with the upgrade to Acquisition 2, new codes were needed. Have you tried redelivery of your activation code via entering your email address? Acquisition Activation Code Redelivery Tool

Their Release notes do not give dates which is not very helpful. You may need to obtain a new activation code.

Sounds like a Scam, never heard of paid for liftime membership/upgrades with out get riped off... Stefan Kopec sorry to say it seems you got Scamed... If this so, try to get refound!

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Just Good enough, smart enough, and no longer Elite...