A Which? report into the travel industry says holiday companies are offering credit notes and not refunds. I doubt its Tui that made the refund.
"According to the travel industry’s own estimates, up to £7bn could be owed for cancelled trips. However, industry bodies such as Iata, for airlines, and Abta, for travel firms, say firms would be bankrupted by repaying now as they are receiving no booking revenue."
https://www.theguardian.com/business...ch-coronavirus