According to the TurboTax expert in a similar thread (linked below), the $50 apparently comes as a separate bonus payment. See the answer by TurboTax Expert @ LenaH in this other thread at the link below, where she mentions a date of "May 10." I don't know why that is a magical date, but I don't work for TurboTax. If you have additional questions about it, ask in that thread, or it's possible a TurboTax Expert may see your question here in this thread during the day.
https://ttlc.intuit.com/community/after-you-file/discussion/when-will-i-get-the-50-bonus-from-credit...
