If you have purchased IbadaLive Panel license then it will instantly be activated. And if you have purchased Dedicated Server or VPS then It will take nearly 12-15 hours to activate it. All account login details such as your control panel login information, server info et cetera will be sent in your welcome email.
But, please, note that notifications from 2Checkout/FlutterWave/Stripe come right after the transaction has been processed successfully.