Received the bottle today, thank you. It was very well packaged, therefore the 3 mm dent on the top of the reg is extremely unlikely to have happened in transit; as the packaging was undamaged.
You said it was in very good condition before the sale. This damage should have been highlighted, given the fact that I specifically asked about dents. I would not have offered the amount I did had I known about this dent; and I can't expect anyone else will, should I wish to sell it on in the future.
This bottle only works with two of my three markers, which I don't like but I can live with. I am going to keep it, but I would have appreciated more openness before the sale.