Ah yes, the corporate follow-up email.

“Hey, I just wanted to follow up on our conversation on [date/time]. These were the key points we discussed: [list points].”

Feel free to add on things like “I just wanted clarification on your response to ___. I understand the resulting reduction in hours will put me below the minimum allowable for full time employment, which would result in a loss of full time status / benefits. Is this an accurate understanding?”

You’ll have a written record of what was said, with whom, and when.