Unfortunately, this is a "known issue". When Telus moved customer eMail accounts to Google Workspace they did not enable access to Google Docs or Google Maps.
The solution is:
1) Create a normal Gmail account (yep ... a 2nd non Telus Gmail account)
2) When accessing Google docs .. ensure that you are logged out of your Telus Gmail account by going to mail.google.com in your browser and a) Log out of your Telus account and b) Log in to your new non Telus Gmail account.
Downsides:
Other than the annoyance factor (yes .. access to Google Docs *should* be grantable by the Telus Google Workspace administrators but may not actually be grantable due to Telus/Google contract, financial, or other reasons) you may find that if your Telus Gmail account has received an invitation or a link to a Google Document you still may not be able to open that document by forwarding the invitation to your new Gmail account. The reason for that is that access to the document is restricted to the original address of the recipient... i.e. the invitation was extended to the Telus Gmail account and only that account may open the document.
There are workarounds: a) the document owner can CC the invitation to your new Gmail account. b) the document owner can, as the documents' administrator, grant access to the document to a list of contacts ... one of which would be your new Gmail account.
That being said .. if you are using Google Docs for solely your own activities then simply managing those documents through your secondary Google account should work fine.
