Sorry to be possibly sounding rude here but you simply don't seem to understand:
E-MAIL DOESN'T WORK WITH THESE GUYS - YOU HAVE TO PUT PEN TO PAPER!
Nothing else works! If a court summons from Northampton court doesn't work, and bailiffs arriving at their front door didn't work (initially) then what hope do you really have of being taken seriously with an e-mail?
SHARK!
For every positive action, there's an equal and opposite government plan.