The Tax Matron will prepare your tax returns based on the information that you have provided. It is your responsibility to give accurate information, as required by law, to file your tax return. Failure to do so can lead to penalties placed by the Canada Revenue Agency (CRA).
The Tax Matron is not responsible for confirming that your tax information is accurate.
It is your responsibility as the client to keep a copy of all documents, receipts and similar information that was used to do your tax return. This is to prove the accuracy of the return to the CRA, should they ask.