I thanks for your reply. We were definitely impacted as my hubby was refused credit for a car and a personal loan and we couldn't understand why.Discussed in a few places, including here: https://www.askaboutmoney.com/threads/refused-switch-icb-incorrect-issue.218071/
If you can show you were impacted negatively by it, then by all means seek compensation, but if not what would you sue for?