What is the process for getting a refund for buying Turbo Tax and for the extra amount I paid for speaking with a live TurboTax consultant?

[knoneil]

The amount of income tax payment/return that they calculated was wildly innaccurate from what my actual payment-return was

[TurboTaxSusan]

Did you check your Notice Of Assessment to see what the CRA changed on your return?

Thank you for using TurboTax.

[knoneil]

Thank you for replying. With all due respect, does it matter what, if anything, was changed?  The point it that TurboTax's calculations and conclusions were way off.  Shouldn't TurboTax be accurate? Why would the CRA need to change anything if TurboTax had been accurate in the first place?