Airmypc support is responsive. Go to their website → Support → Submit a ticket. Include:
Most support agents resolve key issues within 24 hours, often by resetting your activations server-side. airmypc registration key fix
You have exceeded the device limit. Deactivate the key on the old PC via the official portal before activating on the new one. Airmypc support is responsive
If you bought from a reseller and the key is blacklisted, request a chargeback via PayPal or your credit card company. Then: Most support agents resolve key issues within 24
Most users don't know that Airmypc offers a key verification tool.