Hey everyone, I've been out of the country and only just got back to the UK yesterday. I realised I left the eBay listing on when I got a message from someone asking if it was still available and so I removed it.
The listing was created with eBay's Easy Pricing feature which states "Starting 10 days after listing we'll lower your price 5% every 5 days, until your item sells or it gets to £XX.XX - plus we'll notify interested buyers each time." which is why you saw a price drop from £28,000 to £26,600. Anyone watching the listing would have been notified.
I never came on bitcointalk on mobile because the site is horrendous to use and I did not receive any direct communication raising this issue to my attention. I hope that clears everything up!! Merry Christmas everyone
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