MRN input into Eurotunnel VP anyone?

Just spent about a week trying to sort this out.
Online declaration for commercial goods in baggage or small van. You can dmake an online declaration, BUT, you need TWO EORI NUMBERS, ONE UK & ONE EU, AND MOST PEOPLE SEEM TO TAKE THE IRISH ONE, SO REGS WERE CHANGED IN JULY, SO BUT NOT ALL THE WEBSITES ARE UPDATED.
THIS REFERS TO PERMANENT EXPORT OF GOODS FOR SALE.
HARBOUR SHIPPING HAVE BEEN VERY HELPFUL TO ME, AT NO COST OTHER THAN THE FERRY TICKET.
GOOD LUCK