What should I do if I purchased with the wrong email address?
Contact purchase support so the order can be located and the delivery problem reviewed. Explain that you cannot access the address used at checkout, so support knows that recovery messages sent there will not reach you.
Start with Paddle buyer support, which handles BetterDisplay purchases and license delivery. Have the purchase date and available receipt or transaction reference ready, together with the incorrect address and the address you can actually receive mail at. Share order details through the support process rather than in a public discussion.
If the normal recovery process cannot help because it requires access to the mistaken address, explain that limitation when contacting BetterDisplay through the official contact page. If you already made a second purchase, identify both orders so support can distinguish the usable license from the mistaken purchase. Contact support before buying again.
Correction, cancellation or refund requests require review of the particular order. See the refund policy and purchase and activation guide.
Once you have the correct purchase details, use the activation errors FAQ if Paddle still cannot activate the license.