Received the wrong download version of turboTax. I need the mac version of: TurboTax Standard Online -2915 - Two returns

The online version is suitable for both PC and Mac.  It is only the installed versions that are Windows only.

I am aware of that. I wanted Turbotax to offer me the online version instead of the downloaded version I ordered by mistake.

Please call us by clicking the following link to the Contact Us page. Then complete the required information. A phone number will appear, along with your incident ID. Call the number. This will ensure that an appropriate agent is assigned to your query:
https://support.turbotax.intuit.ca/contact/