Update:

So after 27 business days I have received the money. I did email Financial Ombudsman around a week ago but they did not respond yet however, someone on Reddit advised emailing the Ebay CEO as he sent him an email and received the money after 12 hours. 

So I also emailed the CEO and then received the money after an hour without receiving a reply to my email from the CEO. Could be a coincidence 🤷🏽‍♂️ but still worth a try for anyone facing the same issue