If you are using the TurboTax online editions there is not a "Basic" edition. There is a Free online edition which can be used if you have a simple tax return.
If you used and paid for one of the other TurboTax online editions, not the Free edition, you must contact TurboTax support to get the payment canceled or refunded. When contacting support use the key words Billing Issue.
See this TurboTax support FAQ for contacting support - https://ttlc.intuit.com/turbotax-support/en-us/help-article/account-management/turbotax-phone-number...
Support can also be reached by messaging them on these pages https://www.facebook.com/turbotax/ and https://twitter.com/TeamTurboTax
