Hey @Bader989,
sorry to read that you haven't received your founder's code yet. Usally those codes are sent 2-3 days after shipping.
Please check also the Spam, Trash and Advertise-folders in your email-account to make sure that is hasn't gone there by any reason.
If you can still not find it or never received it, it's best in this case to contact Stadia-Support to receive a code. You just need your order-number (you can find this in "orders" in store.google.com) and also the serial-number of your founder's edition (hardware should have arrived at yours).
Hope this helps, wish you the best.
