Since this is not the registrants main domain, if this were the case I would have expected the expiration date to be the same as the main domain and different to the creation date of the domain. But the creation day and expiration day are the same, just the registration day is different, not to mention 5 years after creation date.
I just went to chat to one of our IT guys who said this is just an error and the creation date and registration date of a domain are always the same.
So I guess that mystery is solved..
Phew. And I thought I would never find the answer. Bloody confusing though.