I received an email from Turbo Tax yesterday (2/25) stating that my tax refund is on its way. My DDD is 2/26 but I Have not received my tax return yet. Please help

I have always received my Tax refund either the night before my DDD or very early in the morning on the day of my DDD. I am getting anxious and wondering why haven't I received my refund as of 10:07am on 2/26