I spoke to a rep about a month ago to update my credit card info and ship my TurboTax. I have not received it nor have been charged.
Go to this TurboTax website to update your Credit Card information - https://shopping.turbotax.intuit.com/unified/downloads/myaccounts?route=myaccounts&cgcview=billing
For an Advantage subscription - https://ttlc.intuit.com/community/choosing-a-product/help/how-do-i-update-or-confirm-the-info-in-my-...
If you have any type of billing issue you have to contact TurboTax support during business hours.
Support is open from 5am to 5pm Pacific time, Monday thru Friday
Use this website to contact TurboTax support during business hours - https://support.turbotax.intuit.com/contact/
Support can also be reached by messaging them on these pages https://www.facebook.com/turbotax/ and https://twitter.com/TeamTurboTax