Why did you use the term "billing" for your question title?
Has TurboTax sent you emails with a bill for your TurboTax fees? Did you originally chose to pay your fees out of your Federal refund? And if so, has your Federal refund been delayed a long time, or did the IRS reduce it to where it would no longer cover the fees? If your refund is delayed, TurboTax will start emailing you bills. If not paid, they warn you that they are about to debit your bank account. If you do not act quickly at that point to either pay or ask them for a deferral, they do debit one's bank account.
If that's your situation, and if you got an email that they are about to debit your bank account, you need to call them today (Thursday) ASAP to make arrangements. If they've scheduled a debit for Friday, it may be too late to stop.
Hours are 5AM-5PM Pacific (8AM-8PM Eastern) Monday-Friday.
FAQ: What is the TurboTax phone number?
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632
Otherwise, in this forum we can tell you how to get information on your Federal refund, how to speak with live agent at the IRS about any delay, and how to ask for help from the IRS Taxpayer Advocate Service, if needed.
