Refund advance

So the IRS accepted my return on 1/19 instead of 1/29. Ok so they are getting a head start. I thought I was getting the advance within a few minutes of being accepted, but no. I called credit karma they told me to call turbo tax. So I did. Turbo tax customer service knows nothing other then what we can read ourselves. I asked her to speak to she just kept reading the part of the irs accepting it on the 29. I want an explanation of why i don’t have the advance yet