Hi! Welcome to Meta and congrats on activating your Quest 3.
In most cases, the $30 promotional Quest credit does not appear instantly. It can take some time after activation, sometimes up to 24–72 hours, for the credit to show up in your account. I recommend checking your Wallet or Payment Methods section in the Meta app or on the Meta website to see if it is pending.
If it still does not appear after a few days, it is likely a referral tracking issue. Reaching out to Meta Support with your referral details and activation date is the best next step, as they are usually able to resolve it.
Hope this helps, and enjoy your Quest 3.