Can i use the following link https://www.scotiabank.com/ca/en/personal/programs-services/turbotax.html and did not receive my 20% discount as promised -

You would need to click on the link in the email that was sent to you. The url in the link might contain extra code that the url you saved from last year doesn't have.

I did not receive an email - from scotia Bank - I visited their website after having started my return directly with turbotax. - my prior year Coast Capital link was only for 2022  and scotia website had a link for 2023. 

Did you recieve an email advising you of a discount?