FL has no state income tax. Did you pay for a state return?
To call TurboTax customer support
They are available from 5 a.m. to 9 p.m. Pacific time
Use the word "billing" not refund.
xmasbaby0 provided a way to phone TurboTax Support in her answer above, but here's some more info that might help you and other Florida users who see this thread.
Florida does not have a state income tax. Only people who have Florida businesses or rental property with tangible personal property have to file a DR-405 with the county property appraiser by April 1.
If you don't have a Florida business or rental property with such tangible personal property, then you do not have to file a Florida return. You can choose to skip the Florida return, or delete the Florida return before paying and filing if it's not needed.
If you've already paid for it and don't need it as explained above, you can talk to TurboTax Customer Support and tell them you didn't need it.
FAQ: What is the TurboTax phone number?