There is, or was, someone posting on Model Boat Mayhem forum under that name but his first/last/only posting was 29 May 2014, some 44 minutes after he first registered. Here it is:
"Has anyone tried to contact Billing Boats in Denmark recently? I have problems with one of their more expensive kits and the retailer has not received help so far from Amerang. I have been offered a refund as Amerang say parts take a long time to come but have not offered to obtain even with a delay. Amerang do not appear interested in their products. I think the retailer has tried very hard but is just not getting anywhere. Emails to info@billingboats,com as per their web site just come back. I also sent a letter to Kent Billing in Demark but no response. Anyone had similar experience. Are Billings still in business?"
He hasn't been active on that forum since that date.
Dave M