Hi again
Sorry my mistake I never realised that a column of type text can not have a default value. I checked the MySQL manual and this is indeed the expected behaviour. This means that you would need to change the code to insert your default comment. However I don't know the code well enough to give proper advice on where to cahnge the code. If you don't get any other responses I would start with looking at the file: includes/templates/your template /templates/ tpl_checkout_shipping_default.php
and then find where the comments are first created and add your default there.