I went on to register and a message informed me my username was already taken.
So thinking I had registered before and forgot about it, I asked for a new password using the password reminder.
I eventually got one…but for an old Unibet account, when Unibet was on Tradedoubler.
So eventually using my old Unibet login information I logged into betclic and I could see my tradedoubler stats.
Probably not a major problem, but neither it inspires trust.