Also, in my case I don't receive the affiliate link via mail, which should be generated by this code in the email template

<?php echo JText::_( 'YOUR_LINK' ); ?>: <?php echo AffiliateHelper::get_account_link($this->account->id); ?>

it works slightly different for the email template. in this case, please add your modifications directly in the original default_email.php file

add your modifications directly in the original default_email.php file

that means I have to re-update the file every time I update the component right?

What I am trying to do as a workaround is operating on the language strings instead.
I put a language override for both english and italian (just to be sure)
see http://nimb.ws/ag3qop (this si just the english one)

but when I test the string used is still being picked from the default english language file, aren't language overrides supposed to work also for the emails?

(I know I could just change the string on the default language file, but again... when I update the component that would overwritten)

screenshot url not working, here is the correct one: http://nimb.ws/vushjl

screenshot does not work..

it was just a screenshot of the language override
attached

if you want, send me access and I'll take a look.