From the above

*If travel originates in Europe, the Middle East or
Africa
, the following exceptions apply:
Tango
: No changes are permitted.
Flex and
Business Class Lowest
: Changes (for a fee) may be permitted.

Might have been confused between a future change versus the same day free change...

Always have to remember that these agents deal with multiple airlines; always good to have a print out or the link handy