Did taxes for 2018 but CRA did not receive them?

[TurboTaxLise]

You would have received a confirmation number if you had filed your 2018 tax return successfully.

Please review the links below to assist you in determining if you have filed your 2018 tax return correctly/successfully:

• How do I know if my return was filed using NETFILE and received by the CRA?
• Why didn’t the CRA receive my tax return when I used TurboTax to file my return?