They suddenly threaten debt collection. With 2 days notice. When they want your money - they want your money. Perhaps the people who are owed money should take bulb to small claims court. In fact I'm thinking about starting an action group to take a class action against bulb.
I've been a long term customer and sure account is in deficit, but this is a calculation and estimation of course. The product does not work as intended. They could have emailed me, called me, but it seems their rules over what debt can be tolerated is no known.