I think the agent I spoke to was mistaken. I clicked on the Terms and Conditions link in the e-mail, and I was taken to this page:
https://www.emirates.com/english/des...onditions.aspx
It specifically talks about this in two bullet points:
- Chauffeur-drive service is not applicable to flights upgraded from Economy Class to Business Class with this offer.
- Where upgrades from Business Class to First Class are purchased, individuals will be eligible for the Chauffeur-drive service offered for the original Business Class ticket purchased.
As for lounge access, it just says:
- Airport lounge access is not available prior to departure of the flight upgraded using this offer. No lounge access is available to any subsequent Economy Class flights. Emirates Skywards members will retain access to lounges based on their tier eligibility.
That's not as cut and dry though.