Can I withdraw the returns Jackson Hewitt did for me and do them through TurboTax since it's not January 28th and the IRS is accepting returns yet?

The IRS isn't accepting tax returns until January 28th. I started doing my taxes on TurboTax but didn't finish, I then went to Jackson Hewitt because I needed a refund advance yet after the lady did my taxes I was getting $500 less and they charged me over $400. So my question is this since it is not the 28th of January yet can I withdraw my taxes from Jackson Hewitt and still file through TurboTax? I also notified Jackson Hewitt that I wanted to cancel everything the next day but about two hours later I got an email saying they submitted them to the IRS however they have not been accepted by the IRS yet